Executive Summary

This article traces the history of Gold and Silver in the Middle Ages, revealing that the medieval monetary world was characterized by: (1) Byzantine Gold’s slow decline from unquestioned supremacy to complete extinction; (2) Western Europe’s centuries-long Silver economy gradually evolving into sophisticated Gold coinage systems; (3) Islamic Dinars’ domination of Mediterranean and Indian Ocean trade; and (4) Religious and military conflicts paradoxically accelerating economic integration by forcing cultural contact and metal transfers.

Ultimately, this millennium-long history reveals not only how control over precious metals became inseparable from political legitimacy, religious authority, and economic survival, but that the value of a currency is greater than its metal content – deriving its worth also from its commercial adoption, networks of circulation, and institutional trust. Monetary credibility and legitimacy accumulated slowly through consistent standards, but disappeared rapidly through broken promises and debasement. This insight, learned through Byzantine collapse and Venetian success, would prove more enduring than any empire.

Table Of Contents

1. Introduction

2. History (500-1500 CE)

3. Chronology

4. Final Thoughts

5. Appendix

1. Introduction

The thousand years between the fall of Rome and the discovery of the Americas witnessed one of history’s most dramatic monetary transformations. This era saw the rise and fall of great monetary systems, the financing of holy wars, the birth of international banking, and technological innovations that would echo through centuries, and what began with Byzantine Gold dominating three continents ended with European ships racing toward African and American precious metal sources that would reshape the global economy.

Reader note – the parts of this series are:

• A History Of Gold And Silver In The Ancient Era – here.
• A History Of Gold And Silver In The Middle Ages – here.
• A History Of Gold And Silver In The Early-Modern Era – here.
• A History Of Gold And Silver In The Modern Era – [coming soon]
• A Complete History Of Gold And Silver – [coming soon]

2. History (500-1500 CE)

The Byzantine Gold Standard: Continuity and Collapse (527-1453)

When Emperor Justinian I ascended the Byzantine throne in 527, he inherited the most stable currency system in the known world. The Gold Solidus, introduced by Constantine the Great in 310 CE, had maintained its weight and purity for over two centuries—an achievement unmatched in monetary history. Justinian used this Byzantine Gold wealth to fund ambitious military campaigns aimed at reconquering the former Western Roman Empire, achieving successful conquests in North Africa, Italy, and southern Spain. His conquest of Vandal North Africa in 534-536 reopened the mint at Carthage, which became a major producer of Gold Solidi until the Arab conquest in 698, significantly contributing to Byzantine Gold circulation in the western Mediterranean.

The Byzantine monetary system faced its first serious challenge not from external enemies but from internal pressures. The Lombard invasion of Italy in 568-572 disrupted Byzantine control of Italian mints, reducing Western Gold production, though Byzantine mints at Ravenna and Rome continued striking Solidi. During the desperate wars against Sassanid Persia, Emperor Heraclius took the extraordinary step in 622 of melting church Silver vessels weighing thousands of pounds to finance military campaigns. He also introduced the Silver Hexagram in 615 alongside his Gold Solidus to help fund the war. Despite ultimately defeating Persia, these wars exhausted both empires financially, setting the stage for rapid Arab conquest of both territories in the following decades.

The true erosion of Byzantine monetary integrity, however, would not begin for another four centuries. From Constantine the Great in 310 CE through the early 11th century, Byzantine emperors maintained the Solidus at its original purity—a span of over seven hundred years that made it the most trusted currency from the Atlantic to the Indian Ocean. Around 800, an Arab merchant’s manual recommended Byzantine Gold Solidi as the safest currency for long-distance trade, noting they could be used “from the lands of the Franks to China” without need for assay or verification, demonstrating the Solidus’s unmatched international reputation.

This remarkable monetary stability began to crumble in 1028-1034 when Emperor Romanos III Argyros began gradually debasing the Gold Solidus, reducing its fineness from the traditional 24 carats that had been maintained for seven centuries. His successor, Michael IV the Paphlagonian (1034-1041), a former moneychanger before his unexpected rise to imperial power, took the unprecedented step of significantly debasing the Gold Solidus. His background in currency exchange may have influenced his willingness to break with centuries of monetary tradition.

By 1042-1055, Emperor Constantine IX Monomachos introduced the scyphate (cup-shaped or concave) form for Byzantine Gold coins while continuing debasement. Contemporary observers noted that debased Byzantine Gold coins were being rejected by Italian merchants in Constantinople’s markets, who began demanding payment only in older, full-weight coins. This marked the beginning of Gresham’s Law in action: “bad money drives out good,” as people hoarded quality coins and spent debased ones.

The catastrophic Byzantine defeat at the Battle of Manzikert in 1071 by Seljuk Turks resulted in loss of most of Anatolia, drastically reducing imperial tax revenues and Gold supplies. This military disaster accelerated the monetary crisis already underway. Under Emperor Michael VII Doukas, the purity of Byzantine Gold coins dropped precipitously to approximately 14 carats (58% Gold, 42% base metal). By 1078 under Emperor Nikephoros III Botaneiates, Gold purity fell further to approximately 8 carats (33% Gold, 67% base metal). The Byzantine Gold currency approached complete collapse.

During the first eleven years of Alexios I Komnenos’s reign beginning in 1081, Byzantine Gold coins ranged from 0 to 8 carats—some issues were essentially copper coins with Gold wash, representing the nadir of Byzantine monetary credibility. In 1092, Emperor Alexios I Komnenos enacted comprehensive monetary reform, replacing the debased Solidus with the Hyperpyron (“super-refined”) at 20.5 carats fine Gold (approximately 85% pure). While not achieving the purity of the ancient Solidus, the Hyperpyron restored significant value and confidence to Byzantine Gold coinage, establishing a new three-metal system with Gold Hyperpyra, electrum (Gold-Silver alloy) Trachea, and billon Trachea in fixed ratios.

This reformed system survived for two and a half centuries but faced relentless pressure. The catastrophic Fourth Crusade of 1202-1204 permanently weakened the Byzantine Empire when Venice redirected crusader armies to sack Constantinople. The Latin Empire of Constantinople that followed issued Gold Hyperpyra imitating Byzantine types but with reduced quality and weight, while the Byzantine Empire in exile at Nicaea also struck Gold Hyperpyra, gradually debasing them from 20.5 to 18 carats.

Civil wars between John V Palaiologos and John VI Kantakouzenos from 1341-1357 further bankrupted the empire. The Byzantine Hyperpyron ceased regular circulation as a physical coin, remaining only as an abstract money of account for bookkeeping. Actual transactions increasingly used Venetian Ducats or Genoese coins. When Ottoman Sultan Mehmed II conquered Constantinople in 1453, definitively ending the Byzantine Empire, he also ended a millennium-long Gold currency tradition stretching back to Constantine the Great’s Solidus. The disappearance of Byzantine Gold coinage marked the effective end of Roman monetary tradition.

The Islamic Monetary Revolution (638-1500)

While Byzantine coinage declined, Islamic monetary systems rose to dominance across three continents. During the Arab-Byzantine War of 638-642, Arab Muslim forces conquered Byzantine Syria, Palestine, Egypt, and Sassanid Persia, gaining control of substantial Gold reserves and bullion sources. Early Islamic authorities initially minted imitative Byzantine-style Gold coins with modified imagery. The conquest of the Sassanid Empire also captured Persian Silver mines and minting facilities across Iran and Mesopotamia, transferring control of major Middle Eastern Silver production to the Arab Caliphate.

By 650, the Arab Caliphate began minting Silver Dirhams based on Sassanid weight standards at approximately 2.97 grams per coin, establishing a standardized Islamic coinage system. The Umayyad Caliphate reformed this system in 695 under Abd al-Malik, creating a unified monetary standard and establishing standardized Silver Dirham production across Islamic territories from Spain to Central Asia.

The transformative moment came in 696-697 when Caliph Abd al-Malik ibn Marwan issued the first fully reformed Islamic Gold Dinar weighing 4.25 grams (one mithqal), establishing a new weight standard distinct from the Byzantine Solidus. This reform created an independent Islamic monetary system and established the Dinar as the Gold standard for the Islamic world for the next millennium. The Umayyad conquest of Visigothic Spain in 711-718 brought Islamic Gold Dinars into circulation on the Iberian Peninsula, with Spain becoming a major Islamic Gold coinage producer.

Following the overthrow of the Umayyad dynasty in 750, the Abbasid Caliphate ruling from Baghdad maintained the Gold Dinar standard and minted Silver Dirhams weighing 2.97 grams at approximately 20 mints from Cordoba in Spain to Samarkand in Central Asia, standardizing the Islamic currency across territories spanning 5,000 miles and creating a vast unified monetary zone. By 762, Baghdad became a major Silver coining center, producing an estimated 40% of the Caliphate’s total coin output at the height of the Islamic Golden Age. By 715, Umayyad mints in Damascus were producing millions of Silver Dirhams annually, facilitating trade across the Mediterranean and Indian Ocean commercial networks.

The Fatimid Caliphate, beginning in 909 and ruling from Tunisia and later Egypt, produced exceptionally high-quality Gold Dinars known for their distinctive “red Gold” purity approaching 99%. When Fatimid general Jawhar al-Siqilli conquered Egypt in 969, he immediately began minting these extremely pure Gold Dinars in Cairo to establish Fatimid monetary authority. In 973, Caliph al-Mu’izz arrived in Egypt from Tunisia with reportedly one hundred camel-loads of Gold bars to establish Fatimid currency dominance. This massive transfer of bullion enabled the Fatimids to flood the market with high-quality Dinars that became the most widespread and trusted trade coins of the Mediterranean, rivaling and eventually surpassing Byzantine Gold in commercial importance.

Islamic monetary influence extended remarkably far. Around 774-786, King Offa of Mercia minted an extraordinary Gold coin copying an Abbasid Dinar, complete with Arabic inscriptions and the Islamic declaration of faith. This curious numismatic artifact demonstrates the reach of Islamic coinage as a model and may have been intended for trade with the Islamic world or as payment to the papacy.

The Mamluk Sultanate of Egypt and Syria, established in 1250, became the Mediterranean’s dominant Islamic power, producing abundant Gold Dinars from African Gold trade. Mamluk Gold financed successful resistance against both Mongol invasions and Crusader attacks. When Baybars defeated the Mongols at the Battle of Ain Jalut in 1260 and captured Syrian Silver mines from the Crusaders in 1268, Mamluk Egypt became the Mediterranean’s Gold trading hub. A Chinese official visiting Hormuz in the Persian Gulf in 1422 reported seeing bazaars where “Gold Dinars are piled up like firewood,” describing the enormous quantities of Gold flowing through Indian Ocean trade routes.

Western Europe’s Silver Centuries (680-1250)

While Byzantium and the Islamic world maintained Gold-based currencies, Western Europe underwent a dramatic monetary transformation. Anglo-Saxon kingdoms began minting Silver Sceattas around 680, weighing 1.0-1.3 grams and largely produced in Kent and Thames Estuary regions, circulating extensively in Frisian trade networks connecting Anglo-Saxon and Continental commerce.

The Merovingian Francia produced the last Western European Gold Tremisses (one-third Solidi) around 700-720, marking the end of regular Gold coinage in Northwestern Europe for over five centuries. Economic changes and lack of Gold supplies made Gold impractical for everyday commerce. Frankish King Pepin the Short introduced the Silver Denier (Penny) in 755, marking the decisive shift from Gold coinage in northern Europe.

Charlemagne’s comprehensive weights and measures reform in 793 established the foundation for the Carolingian monetary system. He introduced Silver Deniers weighing 1.7 grams and established 240 Deniers as the per pound standard (approximately 408 grams). As a result of Charlemagne’s currency reforms, Gold virtually disappeared from Western European minting for nearly five centuries. His son Louis the Pious issued extremely rare Carolingian Gold Solidi from 814-818, among the last Byzantine-style Gold coins struck in the West, likely serving diplomatic and prestige functions rather than circulating as regular currency.

The Viking age brought new dynamics to European Silver circulation. In 810, Vikings demanded 100 pounds of Silver as the first recorded Danegeld tribute from Frisia, establishing a pattern of Silver-based protection payments. Vikings traded goods like furs and slaves for Silver from the Abbasid Caliphate and other Islamic regions, traveling through eastern routes linking Scandinavia to wealthy Islamic markets via Eastern European rivers. The Spillings Hoard, discovered in 1999 on Gotland, Sweden, contained 67 kilograms of Silver including 14,295 coins (mostly Islamic Dirhams) buried around 840—the largest Viking hoard yet unearthed. The Viking siege of Paris in 845 ended when Charles the Bald paid 7,000 pounds of Silver tribute.

Under Charles the Bald in 850, the Carolingian Empire reformed its coinage with a new Silver Penny weighing 1.7 grams and containing 95% pure Silver, improving coin quality and standardization. The Republic of Venice began minting the Silver Grosso in 1193, weighing 2.18 grams and made of 98.5% pure Silver, to serve as a more valuable trading currency. The Byzantine Empire introduced the Miliaresion Silver coin in 720, weighing approximately 2.25-2.27 grams initially, though declining Silver supplies forced weight reductions to approximately 2.0 grams by 930 and 1.8 grams by 1015.

Mining Technology and Silver Production (968-1500)

Medieval mining underwent remarkable technological development that enabled deeper extraction and greater output. The Rammelsberg Silver mine began operations under Emperor Otto I in 968, establishing an important German Silver production center that would operate continuously for over 1,000 years. The German Freiberg Silver mines began operations in Saxony in 1130, featuring innovative horizontal shaft mines for improved ore access and extraction efficiency.

Polish Silver mining began at the Olkusz deposits in Silesia around 1150. The Teutonic Order established Silver mining at Kuttenberg (Kutná Hora) in Bohemia in 1230. By 1400, Kuttenberg produced approximately 6-7 tonnes of Silver annually at peak production, representing about one-third of total European Silver output—making it the most productive European mining center. The Bohemian mines reached a 300-meter depth using improved drainage technology, pushing the technological limits of medieval mining.

The German Schwaz Silver mines in Tyrol reached peak production of approximately 15 tons annually by 1485, financing Habsburg territorial acquisitions. German miners introduced blast furnaces for Silver smelting around 1440, increasing ore processing capacity. Water-powered ore crushing mills were introduced at Freiberg in 1310, increasing Silver extraction efficiency by approximately 40% through mechanization. Horse-powered hoisting systems were introduced in Bohemian mines in 1330, enabling shaft depths of 250 meters.

Serbian mining also played a crucial role. The Serbian King Stefan Milutin developed the Novo Brdo Silver mines in the Balkans around 1300, establishing the foundation of a major Silver center. By 1450, Novo Brdo produced approximately 6,000 kilograms of Silver annually at peak production. The mines were famous for “glam Silver” (argentum de glama), a natural Silver alloy composed of 16-33% Gold by weight, making Serbian Silver particularly valuable in international trade. Ottoman conquest of the Novo Brdo fortress in 1455 ended Serbian control, shifting production to Ottoman monetary systems.

The Crusades and Precious Metal Flows (1095-1291)

The Crusades created unprecedented precious metal flows between Western Europe and the Eastern Mediterranean. Pope Urban II launched the First Crusade in 1095, with participants melting personal Silver objects to finance their expeditions, consuming substantial European Silver reserves for military funding. The First Crusade brought tens of thousands of Western European knights and soldiers into direct contact with Byzantine and Islamic Gold coinage systems in 1096-1097, exposing them to monetary sophistication far beyond their native economies.

When Crusaders captured Antioch in 1098 and Jerusalem in 1099, they seized substantial Silver treasuries from Muslim forces, moving Islamic Silver into European circulation. The Latin Kingdom of Jerusalem began minting Gold Dinars copying Islamic models to facilitate trade and taxation. In 1123-1124, Baldwin II of Jerusalem was captured by Muslim forces and ransomed for 80,000 Gold Dinars, demonstrating the enormous sums circulating in Gold.

The Second Crusade of 1147-1149 was financed through both Gold and Silver. The catastrophic Fourth Crusade of 1202-1204 had lasting monetary consequences. Venice agreed to transport crusader armies for 85,000 Marks of Silver, equivalent to approximately twice the annual revenue of the Kingdom of France. When crusaders could not pay, Venice redirected the crusade to sack Constantinople, whose Gold treasures more than compensated the debt, making Venice spectacularly wealthy and permanently weakening the Byzantine Empire.

The Fifth Crusade of 1218-1221 targeted Egypt, attempting to strike at the Islamic world’s economic heart. The Sixth Crusade of 1227-1229 involved Emperor Frederick II providing 100,000 ounces of Gold as a guarantee. The Seventh Crusade of 1248-1254 led by Louis IX of France cost over 1.5 million Livres Tournois. When Louis was defeated and captured at Fariskur in 1250, his ransom required 800,000 Bezants and the return of Damietta. The Eighth Crusade of 1270 received 800-900,000 Livres Tournois in funding, with the final truce including a payment of 210,000 ounces of Gold from the Hafsid Sultan.

The fall of Acre in 1291 eliminated the last major Crusader stronghold in the Holy Land, ending direct European military presence and forcing adaptation to Islamic-controlled Gold trade networks. The Crusades had permanently altered European understanding of precious metal systems and created lasting demand for Gold coinage.

The Return of European Gold Coinage (1231-1500)

The revival of Gold coinage in Western Europe began in southern Italy and Mediterranean trading cities. Frederick II issued Gold Augustales in 1231, featuring classical Roman-style imagery representing his attempt to revive Roman imperial grandeur. Islamic rulers were so impressed by the coin’s artistic quality that some mistook it for ancient Roman coinage.

The transformative moment came in 1252 when Florence minted the first Gold Florin weighing 3.5 grams of 24-carat Gold—the first European Gold coin struck in sufficient quantities since the 8th century to function as regular trade currency rather than merely a prestige object. The coin featured Florence’s lily on the obverse and St. John the Baptist on the reverse. Genoa simultaneously introduced the Gold Genovino at similar specifications, though it never achieved the international acceptance of the Florentine Florin.

England issued its first Gold Penny under Henry III in 1257, designed primarily for royal alms-giving rather than regular commerce. The coin’s impractical denomination and Gold ratio problems led to its quick withdrawal, with only eight examples surviving today. France issued the Gold écu under Louis IX in 1266 as part of major monetary reform, representing French royal ambitions to establish a stable Gold currency rivaling Italian coins.

The greatest achievement in medieval monetary history came in 1284 when Venice introduced the Gold Ducat under Doge Giovanni Dandolo, weighing 3.545 grams of 99.47% pure Gold—the highest purity achievable through medieval cupellation techniques. The Great Council decreed the death penalty for mint workers who debased the coinage. This draconian law, combined with rigorous quality control, maintained the Ducat’s purity for over 500 years—an unprecedented achievement that made the Venetian Ducat more trusted than signed contracts.

England developed more sophisticated Gold coinages under Edward III from 1327-1377, issuing various Gold denominations. The Gold Noble and its derivatives became England’s standard Gold coins. In 1344, England issued the Gold Leopard worth 72 Pence, though Gold ratio problems led to its quick replacement. In 1465, England created the Gold Rose Noble worth 120 Pence and the Gold Angel worth 80 Pence showing Archangel Michael slaying a dragon. The Angel became England’s standard Gold coin for over a century. In 1489, England minted its first Gold Sovereign under Henry VII—the first English £1 Gold coin featuring a highly detailed portrait of the king enthroned.

Hungarian Gold mines in the Carpathian Mountains produced approximately 450,000-500,000 kilograms of Gold from 1300-1500, with annual output reaching 1,400-2,250 kilograms. From the 1330s until Spanish conquest of the Americas in the 1490s, this represented approximately 30% of world Gold production. Charles I of Hungary began systematic Gold coinage exploiting ancient Roman Gold mines in 1311, with Hungarian Gold Florins achieving wide international acceptance.

West African Gold and Trans-Saharan Trade (1100-1500)

During the 12th century, approximately 60% of Gold circulating in Europe originated from West African sources, transported north across the Sahara through Sijilmasa and other trading centers. Mali and Ghana controlled crucial Gold-producing regions in Bambuk and Bure.

Mansa Musa ruled the Mali Empire from 1312-1337, controlling vast West African Gold resources. Mali became the world’s largest Gold producer, supplying 60% or more of Europe’s Gold through trans-Saharan trade. Mansa Musa’s legendary pilgrimage to Mecca from 1324-1325 passed through Cairo, where his extravagant spending flooded the Egyptian Gold market. Contemporary Arab chroniclers report his caravan included 60,000 people, including 12,000 slaves, and 80-100 camels carrying substantial quantities of Gold. His distribution of Gold caused approximately 20-25% devaluation of the Gold Dinar in Cairo, disrupting the Egyptian economy for approximately 12 years.

The Catalan Atlas produced in 1375 by Jewish cartographer Abraham Cresques depicted Mansa Musa seated on a throne in West Africa holding a Gold nugget and scepter. This influential map spread knowledge of West African Gold wealth to European royal courts and inspired Portuguese interest in accessing African Gold sources directly by sea.

Portuguese forces captured Ceuta in Morocco in 1415, initiating Portugal’s systematic exploration and exploitation of West African coastal Gold resources, attempting to bypass trans-Saharan trade controlled by Muslim merchants. By 1441, Portuguese reached Gold-producing regions of West Africa directly, establishing trading posts. The Treaty of Alcáçovas between Portugal and Spain in 1479 divided African trade rights, with Portugal securing exclusive access to Gold Coast trade. In 1482, Portuguese established São Jorge da Mina (Elmina Castle) on the Gold Coast, securing direct access to West African Gold. This fort became the center of Portuguese Gold trade, handling hundreds of kilograms annually.

Economic Crises and Transitions (1343-1500)

The mid-14th century brought severe economic disruption. After the collapse of major Florentine banking houses—Bardi in 1343 and Peruzzi in 1346—due to Edward III of England’s default on massive war loans, approximately 300 Florentine families were bankrupted overnight. The crisis temporarily disrupted Gold Florin production and sent shockwaves through European financial markets.

The Black Death pandemic of 1348 killed an estimated 30-40% of the European population, dramatically reducing Continental Gold and Silver production and causing severe coinage shortages. Arctic ice core analysis shows lead pollution from Silver smelting dropped between 1349-1353.

European Gold circulation remained extremely limited outside Italy and Spain through 1250, with Goldsmiths constantly recycling existing coins, jewelry, and ecclesiastical objects. Italian banks in Florence created letters of credit worth 100,000 Silver Florins by 1250 for papal tax collection, revolutionizing long-distance financial transactions and reducing need for physical Silver transport.

The Great Bullion Famine of 1457-1464 caused severe shortage of precious metals for coinage, creating economic disruption and stimulating search for new bullion sources. In 1429, Mamluk Sultan Barsbay attempted to monopolize all pepper trade through Egypt, demanding payment exclusively in Gold Dinars, forcing European merchants to ship even more Gold eastward and accelerating the late medieval bullion shortage.

The Dawn of Global Transformation (1493-1519)

On the eve of Columbus’s departure in 1493, the Spanish monarchs Ferdinand and Isabella’s entire annual revenue was approximately 5 million Maravedís—roughly equivalent to 12,500 Gold Ducats, or about 44 kilograms of Gold. Within decades, Spanish America would produce this quantity monthly, revolutionizing the global economy.

Spanish conquistadors first discovered Gold on Hispaniola in 1494, marking the beginning of European Gold extraction in the Americas. The Treaty of Tordesillas in 1494 established Spanish-Portuguese colonial boundaries, unknowingly dividing important future American Silver production zones. The Spanish Crown established the Casa de Contratación in Seville in 1503 to regulate all trade with the Americas, creating a monopoly system that would control trans-Atlantic commerce for nearly three centuries.

When Hernán Cortés arrived at Tenochtitlan on November 8, 1519, Aztec emperor Moctezuma II received him with gifts of Gold and Silver artifacts. Following Moctezuma’s capture, Spanish forces ransacked the city’s treasuries and melted ceremonial objects, though much treasure was lost during the chaotic retreat of La Noche Triste on June 30, 1520.

The medieval period in precious metal history thus ended with European powers on the cusp of accessing American Gold and Silver resources that would dwarf all previous sources. The Byzantine Gold standard that had endured for seven centuries had collapsed. Islamic Gold currencies had dominated Mediterranean trade for half a millennium. Italian city-states had revived European Gold coinage and established banking systems that would finance global expansion. The stage was set for a transformation in precious metal flows that would reshape the entire world economy.

3. Chronology

The medieval period witnessed dramatic transformations in precious metal production, circulation, and monetary systems that reshaped global commerce and political power. Three dominant monetary systems emerged and competed during these centuries: Byzantine Gold coinage maintaining Roman traditions, Islamic Gold and Silver currencies spanning three continents, and eventually European Gold coinages that would dominate international trade by 1500:

527-565 – Emperor Justinian I uses Byzantine Gold wealth to fund his ambitious military campaigns aimed at reconquering the former Western Roman Empire, including successful campaigns in North Africa, Italy, and southern Spain. The Gold Solidus remains the empire’s principal currency for military payments and taxation, maintaining its reputation as the most stable Gold coin in circulation

534-536 – Justinian’s conquest of Vandal North Africa reopens the mint at Carthage, which becomes a major producer of Gold Solidi until the Arab conquest in 698. Carthage’s Gold production significantly contributes to Byzantine Gold circulation in the western Mediterranean

550 – The Sassanid Persian Empire mints Silver Drachms at Ctesiphon, producing substantial quantities for trade with Central Asian merchants along the Silk Road’s commercial networks

568-572 – Lombard invasion of Italy disrupts Byzantine control of Italian mints, reducing Western Gold production. However, Byzantine mints at Ravenna and Rome continue striking Solidi, maintaining Gold currency circulation in remaining Byzantine territories

602-610 – Emperor Phocas issues Gold Solidi depicting the emperor holding a cross on the globe, establishing Christian iconography as a permanent feature of Byzantine Gold coinage. This innovation reflects the Byzantine Empire’s identity as a Christian state and influences later Islamic decisions to avoid figural imagery on coins

615 – Emperor Heraclius introduces the Silver Hexagram, alongside his Gold Solidus, to finance war against Sassanid Persia

622 – The Byzantine Emperor, Heraclius, melts church Silver vessels, weighing thousands of pounds, to finance military campaigns against Sassanid Persia during desperate war financing efforts. Despite ultimately defeating Persia, the wars exhaust both empires financially, setting the stage for rapid Arab conquest of both territories in the following decades

638-642 – During the Arab-Byzantine War, Arab Muslim forces conquer Byzantine Syria, Palestine, Egypt, and Sassanid Persia, gaining control of substantial Gold reserves and bullion sources. Early Islamic authorities initially mint imitative Byzantine-style Gold coins with modified imagery. The Islamic conquest of the Sassanid Empire also captures Persian Silver mines and minting facilities across Iran and Mesopotamia, transferring control of major Middle Eastern Silver production to the Arab Caliphate

650 – The Arab Caliphate begins minting Silver Dirhams based on Sassanid weight standards, at approximately 2.97 grams per coin, establishing a standardized Islamic coinage system

680 – Anglo-Saxon kingdoms begin minting Silver Sceattas, weighing 1.0-1.3 grams – largely produced in Kent and Thames Estuary regions, and circulated extensively in Frisian trade networks – connecting the Anglo-Saxon and Continental commerce

695 – The Umayyad Caliphate reforms the coinage system under Abd al-Malik, creating a unified monetary standard and establishing standardized Silver Dirham production across Islamic territories, from Spain to Central Asia

696-697 – Caliph Abd al-Malik ibn Marwan issues the first fully reformed Islamic Gold Dinar weighing 4.25 grams (one mithqal), establishing a new weight standard distinct from the Byzantine Solidus. This reform creates an independent Islamic monetary system and establishes the Dinar as the Gold standard for the Islamic world for the next millennium

ca. 700-720 – Merovingian Francia produces the last Western European Gold Tremisses (one-third Solidi), marking the end of regular Gold coinage in Northwestern Europe for over five centuries. Economic changes and lack of Gold supplies make Gold impractical for everyday commerce

711-718 – Umayyad forces conquer Visigothic Spain, bringing Islamic Gold Dinars into circulation on the Iberian Peninsula. Spain becomes a major Islamic Gold coinage producer, with mints at Córdoba and other cities

715 – Umayyad mints in Damascus produce millions of Silver Dirhams annually, facilitating trade across the Mediterranean and the Indian Ocean commercial networks during Islamic expansion

720 – Byzantine Emperor Leo III introduces the Miliaresion Silver coin, featuring crosses rather than imperial portraits and weighing approximately 2.25-2.27 grams initially (struck at 144 to the pound), establishing a new Byzantine Silver coinage standard that would continue for centuries

730 – The Khazar Khanate establishes Silver trade networks on the Volga River, connecting Byzantine, Islamic, and Central Asian commercial systems, with the Khazars eventually serving as intermediaries in Eurasian trade

750 – Following the overthrow of the Umayyad dynasty, the Abbasid Caliphate, ruling from Baghdad, maintains the Gold Dinar standard established by the Umayyads and mints Silver Dirhams weighing 2.97 grams at approximately 20 mints, from Cordoba (Spain) to Samarkand (Central Asia), standardizing the Islamic currency across territories spanning 5,000 miles, creating a vast unified monetary zone

755 – Frankish King Pepin the Short introduces the Denier (Penny), marking the decisive shift from Gold coinage in northern Europe

762 – The Abbasid capital, Baghdad, becomes a major Silver coining center, with Baghdad producing an estimated 40% of the Caliphate’s total coin output at the height of the Islamic Golden Age

c. 774-786 – King Offa of Mercia mints a remarkable Gold coin copying an Abbasid Dinar, complete with Arabic inscriptions and the Islamic declaration of faith (shahada). The actual minting date is uncertain, but likely occurred after 774, possibly around 786 when Offa made his vow to send annual Gold payments to Rome. This extraorDinary coin demonstrates the reach of Islamic coinage as a model, and may have been intended for trade with the Islamic world or as payment to the papacy. It remains one of the most curious numismatic artifacts of Anglo-Saxon England

785 – The Japanese government mints Silver Kaichin coins, weighing 3.75 grams, importing Silver from Korean mines due to limited Japanese Silver production

793 – Charlemagne reforms the Frankish coinage as part of his comprehensive weights and measures reform, introducing Silver Deniers weighing 1.7 grams and establishing 240 Deniers as the per pound standard (approximately 408 grams), creating the foundation for the Carolingian monetary system. As a result of Charlemagne’s currency reforms, Gold virtually disappears from Western European minting for nearly five centuries

ca. 800 – An Arab merchant’s manual recommends Byzantine Gold Solidi as the safest currency for long-distance trade, noting they can be used “from the lands of the Franks to China” without need for assay or verification, demonstrating the Solidus’s unmatched international reputation spanning three continents

810 – Vikings demand 100 pounds of Silver as the first recorded Danegeld tribute from Frisia, establishing a pattern of Silver-based protection payments that would characterize Viking-European relations for centuries

814-818 – Louis the Pious (Charlemagne’s son) issues extremely rare Carolingian Gold Solidi, among the last Byzantine-style Gold coins struck in the West. These ceremonial pieces likely served diplomatic and prestige functions, rather than circulating as regular currency

825 – The Abbasid Caliphate controls Central Asian Silver mines near Tashkent in the Transoxiana region, producing Silver for Dirham minting operations

827 – Aghlabid dynasty in Tunisia begins the Muslim conquest of Sicily, bringing Islamic Gold coinage to the island. Sicily becomes a crucial intersection point between Byzantine, Islamic, and Western European monetary systems

840 – Vikings trade goods, like furs and slaves, for Silver from the Abbasid Caliphate, and other Islamic regions, travelling through the eastern routes (Austrvegr) that link Scandinavia to the wealthy markets of the Islamic world via rivers in Eastern Europe. Some of these Vikings bury a Silver hoard containing 67 kilograms of Silver, including 14,295 coins, mostly Islamic Dirhams, along with scrap metal and other artifacts, in a treasure trove now called the “Spillings Hoard”. Discovered in 1999 at the Spilling farm on the island of Gotland, Sweden, this is the largest Viking hoard yet unearthed

845 – The Viking siege of Paris ends when Charles the Bald pays 7,000 pounds of Silver tribute – another major Danegeld payment in Francia

850 – Under Charles the Bald, the Carolingian Empire reforms its coinage with the new Silver Penny, weighing 1.7 grams and containing 95% pure Silver, improving coin quality and standardization across Frankish territories

867-886 – Byzantine Emperor Basil I, founder of the Macedonian dynasty, restores some imperial power and maintains the integrity of the Gold coinage. His reign represents the beginning of Byzantium’s Middle Byzantine economic revival

871 – Anglo-Saxon King Alfred pays the Vikings a substantial Silver tribute for their withdrawal from Wessex territory

880 – The Samanid Enpire establishes control over the Transoxiana Silver mines, producing Silver for the Islamic monetary system in Central Asia and facilitating Silk Road trade

900 – The Samanid Empire operates the Panjshir Valley Silver mines in Afghanistan, which were praised in medieval accounts for their productivity and high-quality Silver

909 – The Fatimid Caliphate, ruling from Tunisia and later Egypt, begins producing exceptionally high-quality Gold Dinars known for their distinctive “red Gold” purity (approaching 99%). These become the most widespread and trusted trade coins of the Mediterranean, rivaling, and eventually surpassing, Byzantine Gold in commercial importance

917 – During the Byzantine-Bulgarian War, Byzantine Empress Zoe Karbonopsina reportedly offers the Bulgarian ruler Simeon I an enormous bribe of Byzantine Gold Solidi to spare Constantinople from siege. The bribe fails and Simeon besieges the city

919 – The Khitan Liao Dynasty in northern China mints Silver ingots, weighing 50 taels, for administrative transactions across Manchurian territories – reflecting the Chinese preference for Silver bullion over coinage

930 – Due to declining Balkan mine production and reduced Silver supplies, the Byzantine Empire reduces its Silver Miliaresion coin weight to approximately 2.0 grams

940 – The Cordoba Caliphate mint in Al-Andalus produces millions of Silver Dirhams annually, funding military expansion in the Iberian Peninsula under Abd al-Rahman III. During this time, Abd al-Rahman III also produces abundant Gold Dinars from trans-Saharan African Gold. Córdoba’s mints rival those of Baghdad and Cairo in output and quality

945 – Starting in 945, the Buyid Dynasty controls Baghdad and much of Persia, maintaining Gold Dinar production while the Abbasid caliphs become figureheads. Buyid Gold coins demonstrate continued monetary sophistication in the eastern Islamic world

946-977 – Gisulf I, Prince of Salerno in southern Italy, mints the Gold Tari, closely imitating Fatimid Dinars, to facilitate Mediterranean trade. This represents early European recognition that Islamic Gold coinage has supplanted Byzantine currency as the Mediterranean’s preferred medium of exchange for major transactions

960s – Byzantine Emperor Nikephoros II Phokas introduces the lighter Tetarteron Gold coin (about 4.05 grams) alongside the full-weight Histamenon Nomisma (4.45 grams). This two-tier system reflects economic pressures and creates confusion in the marketplace, contributing to declining confidence in Byzantine Gold

962 –  Across German territories, Emperor Otto I and the Holy Roman Empire standardize the Silver Pfennig at approximately 1.4 grams per coin

968 – The Rammelsberg Silver mine begins operations under Emperor Otto I, establishing an important German Silver production center that would operate continuously for over 1,000 years. While this is the first documented operation of the Rammelsberg Silver mine (by chronicler Widukind of Corvey), archaeological evidence suggests mining activity in the region began earlier – somewhere in the 3rd to 7th centuries

969 – Fatimid general Jawhar al-Siqilli conquers Egypt and immediately begins minting extremely pure “red” Gold Dinars in Cairo to establish Fatimid monetary authority and demonstrate the new dynasty’s legitimacy and wealth

973 – Caliph al-Mu’izz arrives in Egypt from Tunisia with reportedly one hundred camel-loads of Gold bars to establish Fatimid currency dominance in their new Egyptian capital. This massive transfer of bullion enables the Fatimids to flood the market with high-quality Dinars and displace competing currencies

976 – Byzantine Emperor Basil II “Bulgar-Slayer” presides over Byzantium’s final Golden age, with the empire controlling substantial territory and maintaining Gold coin quality. His reign represents the last period of full Byzantine monetary integrity before 11th-century debasement begins

985 – A Viking Silver hoard is buried at Cuerdale.The Cuerdale Hoard was discovered in 1840, by workmen on the River Ribble near Preston, Lancashire, England. It is one of the largest Viking Age Silver hoards ever found – weighing 40 kilograms and containing over 8,600 items, including coins (both Islamic Dirhams and Anglo-Saxon coins), jewelry, and Silver ingots

1015 – The Byzantine Empire mints Silver Miliaresion coins at a reduced weight of approximately 1.8 grams, reflecting the continued decline in available Silver supplies from Balkan sources

1023 – Jewish banker Bonnom (also spelled Bononomen) produces Gold Mancusos for Ramon Berenguer I, Count of Barcelona, imitating Islamic Dinars. These coins reflect the economic reality that Islamic Gold currency is the accepted standard for Mediterranean trade, even among Christian rulers

1026-1031 – The collapse of the Umayyad Caliphate of Córdoba into competing taifa kingdoms disrupts Spanish Gold coinage, though the taifa states continue producing Gold Dinars, often of reduced weight and quality. The fragmentation of political authority leads to variable Gold standards and quality

1028-1034 – Byzantine Emperor Romanos III Argyros begins the gradual debasement of the Gold Solidus, reducing its fineness from the traditional 24 carats that had been maintained for seven centuries. This marks the beginning of a catastrophic century-long decline in Byzantine Gold currency

1034-1041 – Byzantine Emperor Michael IV the Paphlagonian, a former moneychanger before his unexpected rise to imperial power, takes the unprecedented step of significantly debasing the Gold Solidus. His background in currency exchange may have influenced his willingness to break with centuries of monetary tradition

1040 – Following the Turkish expansion into Iran, Seljuk Turks capture Persian Silver mines – minting Dirhams at Isfahan for trade throughout Middle Eastern commercial networks

1042-1055 – Emperor Constantine IX Monomachos introduces the scyphate (cup-shaped or concave) form for Byzantine Gold coins. The exact reason for this distinctive shape remains debated—theories include easier stacking, fraud prevention, or purely aesthetic considerations. The scyphate form becomes characteristic of later Byzantine coinage; A contemporary observer notes that debased Byzantine Gold coins are being rejected by Italian merchants in Constantinople’s markets, who begin demanding payment only in older, full-weight coins. This marks the beginning of Gresham’s Law in action: “bad money drives out good,” as people hoard quality coins and spend debased ones

1048-1077 – Fatimid Caliph al-Mustansir adopts the elegant three-circle coin type, maintaining the Fatimid tradition of high Gold quality even as Byzantine coinage deteriorates. His long reign sees Fatimid Dinars reach their peak of international acceptance

1061-1091 – Norman conquest of Sicily from Muslim rulers establishes a unique trilingual, tri-cultural state where Byzantine, Islamic, and Western European monetary systems coexist. Norman rulers issue Gold Tari modeled on Islamic Dinars alongside Byzantine-style coins

1067 – The Byzantine Emperor Constantine X confiscates monastery Silver treasures, weighing thousands of pounds, to pay mercenary armies

1071 – Byzantine defeat at the Battle of Manzikert by Seljuk Turks results in loss of most of Anatolia, drastically reducing imperial tax revenues and Gold supplies. This military catastrophe accelerates the monetary crisis already beginning under previous emperors. The purity of Byzantine Gold coins drops precipitously to approximately 14 carats (58% Gold, 42% base metal) under Emperor Michael VII Doukas

1078 – Gold purity falls further to approximately 8 carats (33% Gold, 67% base metal) under Emperor Nikephoros III Botaneiates. The Byzantine Gold currency approaches complete collapse

1081 – Byzantine Gold coins range from 0 to 8 carats during the first eleven years of Alexios I Komnenos’s reign, as the new emperor struggles to stabilize the empire militarily and economically. Some issues are essentially copper coins with Gold wash, representing the nadir of Byzantine monetary credibility

1085 – The Christian re-conquest of Toledo captures Islamic mints, which are adapted for the Castilian monetary system during the Reconquista expansion

1092 – Emperor Alexios I Komnenos enacts comprehensive monetary reform, replacing the debased Solidus with the Hyperpyron (“super-refined”) at 20.5 carats fine Gold (approximately 85% pure). While not achieving the purity of the ancient Solidus, the Hyperpyron restores significant value and confidence to Byzantine Gold coinage. The reform establishes a new three-metal system with Gold Hyperpyra, electrum (Gold-Silver alloy) Trachea, and billon Trachea in fixed ratios

1095 – Pope Urban II promises spiritual rewards and material plunder to those joining the First Crusade. Participants of the First Crusade melt personal Silver objects to finance their expeditions to the Holy Land, consuming substantial European Silver reserves for military funding

1096-1097 – The First Crusade brings tens of thousands of Western European knights and soldiers into direct contact with Byzantine and Islamic Gold coinage systems, exposing them to monetary sophistication far beyond their native economies. Crusaders marvel at the wealth circulating in Gold in the Eastern Mediterranean

1098 – Crusaders capture Antioch and substantial Silver treasuries from Muslim forces, moving Islamic Silver into European circulation

1099 – Crusaders capture Jerusalem and substantial Silver treasuries from Muslim forces, moving Islamic Silver into European circulation. The Latin Kingdom of Jerusalem begins minting Gold Dinars copying Islamic models to facilitate trade and taxation in their new territories

1100-1200 – During the 12th century, approximately 60% of Gold circulating in Europe originates from West African sources, transported north across the Sahara through Sijilmasa and other trading centers. Mali and Ghana control crucial Gold-producing regions (in Bambuk, for example)

1115 – The Jurchen Jin Dynasty conquers northern China, seizing the Song Dynasty’s Silver reserves

1118-1143 – Byzantine Emperor John II Komnenos maintains his father Alexios’s monetary reforms, keeping the Hyperpyron at approximately 20.5 carats. His prudent fiscal management sustains Byzantine Gold’s restored credibility

1123-1124 – Baldwin II of Jerusalem is captured by Muslim forces and ransomed for the enormous sum of 80,000 Gold Dinars. He was released in August 1124, after the first quarter of the ransom was paid and several high-ranking hostages, including his youngest daughter Ioveta and Joscelin’s son, were handed over to secure the balance

1130 – Featuring innovative horizontal shaft mines for improved ore access and extraction efficiency, the German Freiberg Silver mines begin operations in Saxony

1130-1154 – Roger II of Sicily creates a sophisticated multi-cultural kingdom where Gold Tari (based on Fatimid Dinars), Byzantine Hyperpyra, and later Western Gold coins circulate simultaneously. Norman Sicily becomes a crucial monetary crossroads

1142 – Almoravid Gold Dinar issued by Tashfin ibn ‘Ali in Spain signals the Iberian Muslim rulers’ assertion of independence from the Abbasid Caliphate in Baghdad. By controlling their own currency, the Almoravids claim sovereignty and religious authority in their domains

1147-1149 – The Second Crusade began in 1147 and was primarily a response to the fall of the Crusader State of Edessa to the Seljuk Turks in 1144. Pope Eugene III called for the crusade to reclaim this city and defend the Holy Land, leading to a military expedition that included campaigns in Europe (primarily Iberia and lands east of the Elbe River), Anatolia (modern-day Turkey), and the Near East (Syria and the Kingdom of Jerusalem). The Second Crusade, like other crusades, was financed through a combination of both Gold and Silver, as well as other assets and sources of funding

1147-1269 – Almohad Caliphate replaces the Almoravids in North Africa and Spain, continuing Gold Dinar production with distinctive square-shaped coins. Almohad control of western trans-Saharan trade routes maintains Gold flow from West Africa

1150 – Polish Silver mining begins at the Olkusz deposits in Silesia, producing Silver for the Piast Dynasty’s coinage operations

1158 – Henry the Lion establishes a unified weight standard for northern European trade and the Hanseatic League – the Lübeck Silver Mark – which weighed 233.85 grams and was accepted for commercial transactions in approximately 200 Baltic cities

1163 – The Almohad Caliphate reforms the Maghreb coinage, minting square Silver Dirhams weighing approximately 1.5 grams at Marrakesh – introducing the distinctive North African coin shape

1171 – The Fatimid Caliphate ends when Saladin establishes the Ayyubid dynasty in Egypt

1175 – The Ayyubid Dynasty established by Saladin captures Nubian Silver mines, which then produced Silver for Damascus and Cairo mint operations

1180 – Still supplementing limited Japanese Silver production, the Kamakura Shogunate imports Chinese Silver for domestic coinage

1187 – During the Siege of Jerusalem, Saladin captures Jerusalem from the Crusaders, disrupting European access to Eastern Gold trade routes and ending nearly a century of Latin Christian control over the holy city. The fall of Jerusalem shocks Western Europe and triggers the Third Crusade

1189-1192 – The Third Crusade brings massive Gold expenditures from England, France, and the Holy Roman Empire. Richard I of England and Philip II of France transport enormous quantities of Gold to finance their armies in the Holy Land. Leaders of the Third Crusade impose the “Saladin Tithe” in 1190 – a tax of 10% on revenues and movable properties throughout England and France, collecting approximately 100,000 Silver Marks for military funding against Saladin

1193 – The Republic of Venice began minting the Silver Grosso, a coin weighing 2.18 grams and made of 98.5% pure Silver, under Doge Enrico Dandolo. It was introduced to serve as a more valuable trading currency for the city-state

1200 – Rum Seljuk Turks in Anatolia issue Gold Dinars depicting Turkish cavalrymen, blending traditional Islamic monetary practice with figural imagery reflecting Central Asian artistic traditions. These coins represent the cultural synthesis occurring in Anatolia between Turkish, Byzantine, and Islamic elements; The Mongol Empire controls Chinese Silver mines in the Yunnan Province, producing Silver under Kublai Khan’s administration for Yuan Dynasty monetary needs

1202-1204 – During preparations for the Fourth Crusade, Venice agrees to transport crusader armies for 85,000 Marks of Silver, equivalent to approximately twice the annual revenue of the Kingdom of France. When crusaders cannot pay, Venice redirects the crusade to sack Constantinople—whose Gold treasures more than compensate the debt, making Venice spectacularly wealthy. This catastrophe permanently weakens the Byzantine Empire and floods Europe with Gold objects, including the famous Horses of St. Mark in Venice

1204-1261 – The Latin Empire of Constantinople issues Gold Hyperpyra imitating Byzantine types, but with reduced quality and weight. Meanwhile, the Byzantine Empire in exile at Nicaea also strikes Gold Hyperpyra, gradually debasing them from 20.5 to 18 carats

1218-1221 – The Fifth Crusade targets Egypt, attempting to strike at the Islamic world’s economic heart. Though militarily unsuccessful, the crusade demonstrates European understanding that Egyptian Gold wealth is key to Muslim power

1220 – The Mongol conquest of Central Asia captures the Samarkand mint, which then produces millions of Silver Dirhams annually for Silk Road commerce under Mongol administration

1227-1229 – The Sixth Crusade began in 1227. Also known as the Crusade of Frederick II, the purpose of this Crusade was to recapture Jerusalem and the rest of the Holy Land. It ended-up involving very little actual fighting and resulted in a diplomatic agreement in 1229 with Egyptian Sultan al-Kamil, rather than military conquest, that regained Christian control of Jerusalem and other holy sites for a brief period. Emperor Frederick II was contracted to provide 100,000 ounces of Gold to the Pope, Hermann of Salza, and John of Brienne as a guarantee before the crusade began, in order to secure his commitment to the crusade

1230 – The Teutonic Order establishes Silver mining at Kuttenberg (Kutná Hora) in Bohemia

1231 – Frederick II issues Gold Augustales, featuring classical Roman-style imagery. These beautiful coins represent Frederick’s attempt to revive Roman imperial grandeur and establish an independent Gold currency in his southern Italian kingdom. Islamic rulers are so impressed by the coin’s artistic quality that some mistake it for ancient Roman coinage, believing Frederick has discovered a cache of Julius Caesar’s Gold

1236-1492 – Christian Spanish kingdoms gradually conquer Muslim territories during the Reconquista, gaining control of cities with established mints and access to African Gold trade. Castile and Aragon begin developing their own Gold coinages

1240 – The Mongol invasion of Rus’ principalities captures Kiev Silver treasuries accumulated through Byzantine trade, disrupting Eastern European Silver circulation

1244 – Khwarazmian forces, displaced by Mongol invasions of 1219-1221, capture Jerusalem after a brief siege. The city’s citadel, the Tower of David, surrendered on August 23, 1244. This definitively ends significant European control over Eastern Mediterranean Gold trade routes. The Latin Kingdom of Jerusalem retreats to coastal strongholds, losing access to interior trade networks

1248-1254 – Louis IX of France leads the Seventh Crusade to Egypt, financed with a series of massive tax hikes, confiscation of Jewish property, and the requisition of “gifts” from 82 towns across France. The total cost was estimated at over 1.5 million Livres Tournois – many times the King’s annual revenue. The crusade was a disaster, and Louis and much of his army were defeated and taken prisoner by the Ayyubid army at the Battle of Fariskur in April 1250. Louis IX was later ransomed for a significant sum of money – sources indicate 800,000 Bezants and the return of Damietta – to secure his release and that of his remaining army

1250 – European Gold circulation remains extremely limited outside Italy and Spain, with Goldsmiths constantly recycling existing coins, jewelry, and ecclesiastical objects to obtain precious metal. The scarcity of Gold makes it a luxury commodity reserved for the wealthy and powerful; Italian banks in Florence create letters of credit worth 100,000 Silver Florins, for papal tax collection across European territories, revolutionizing long-distance financial transactions and reducing need for physical Silver transport; Mamluk Sultanate of Egypt and Syria becomes the Mediterranean’s dominant Islamic power, producing abundant Gold Dinars from African Gold trade. Mamluk Gold finances successful resistance of Mongol invasions and Crusader attacks

1252 – Florence mints the first Gold Florin weighing 3.5 grams of 24-carat Gold (nominally pure/fine Gold), revolutionizing European commerce. The Florin is the first European Gold coin struck in sufficient quantities since the 8th century to function as regular trade currency rather than merely a prestige or ceremonial object. The coin features Florence’s lily (fleur-de-lis) on the obverse and St. John the Baptist on the reverse. Genoa simultaneously introduces the Gold Genovino at similar specifications to the Florin, competing with Florence for monetary dominance in Mediterranean trade. However, the Genovino never achieves the international acceptance of the Florentine Florin. The Republic of Genoa also mints Silver Grosso coins at this time, for Black Sea trade, facilitating Mongol Empire commercial exchanges and connecting Mediterranean to Asian trade networks

1257 – England issues its first Gold Penny under Henry III, designed primarily for royal alms-giving and religious charitable donations, rather than regular commerce. The coin’s impractical denomination (worth 20 Pence) and Gold ratio problems lead to its quick withdrawal. Only eight examples survive today

1258 – The Mongol conquest of Baghdad ends the Abbasid Caliphate and disrupts traditional Gold trade routes. However, Mongol rulers quickly adopt local monetary systems and continue Gold Dinar production in their territories

1260 – Baybars, Mamluk Sultan of Egypt, defeats the Mongols at the Battle of Ain Jalut on September 3, 1260 – while maintaining strong Gold Dinar production. 

1261 – Michael VIII Palaiologos recaptures Constantinople, and restores the Byzantine Empire, but continues debasing the Hyperpyron as the empire lacks resources to restore previous Gold standards

1266 – France issues the Gold écu (shield) under Louis IX as part of major monetary reform. The écu features royal heraldic imagery and represents French royal ambitions to establish a stable Gold currency to rival Italian Gold coins

1268 – Baybars, Mamluk Sultan of Egypt, defeats the Crusaders in 1268 with the Siege of Antioch, capturing Syrian Silver mines from the Crusaders, which then produce Silver for the Mamluk administration’s Cairo monetary operations. Mamluk Egypt becomes the Mediterranean’s Gold trading hub

1270 – The Eighth Crusade began – and ended – in 1270. The second Crusade launched by Louis IX of France, this military campaign was against the Hafsid Dynasty in Tunisia (North Africa) and is also known as the “Crusade of Louis IX Against Tunis” or the “Second Crusade of Louis”. Louis IX aimed to strengthen Christian presence in Africa and potentially launch a future attack on Egypt. However, the crusade failed due to a disease outbreak, likely dysentery, that killed Louis IX. His successor, Charles of Anjou, negotiated a settlement with the ruler of Tunis, ending the crusade without significant military action or conquest. Both the Church and the King contributed substantial amounts of Gold to fund the Eighth Crusade – reportedly in the range of 800–900,000 Livres Tournois – and the final truce that concluded the Crusade included a large payment of 210,000 ounces of Gold from the Hafsid Sultan

1271-1272 – Lord Edward’s Crusade of 1271-1272, sometimes referred to as the Ninth Crusade, was the final military expedition to the Holy Land. Edward Longshanks, later King of England, borrowed 70,000 Livres Tournois (about half a ton of Silver) from the French King and led 1,000 elite men (including 225 knights), along with several hundred sailors and thirteen ships, to Palestine – arriving on May 9, 1271 determined to aid the French besieged in Acre by 30,000 Mamluks under Baybars. The Crusaders were ultimately forced to withdraw, foreshadowing the imminent collapse of the last remaining Crusader strongholds along the Mediterranean coast

1271 – Marco Polo describes the Chinese Silver ingot taxation system, documenting Mongol government use of Silver for revenue collection from merchants

1282 – Byzantine Emperor Michael VIII Palaiologos backs the Sicilian Vespers rebellion against French Angevin rule in Sicily during the “War of the Sicilian Vespers”, further debasing the Hyperpyron to finance this intervention

1282-1328 – Byzantine Emperor Andronikos II Palaiologos continues debasing the Hyperpyron as civil wars and territorial losses reduce imperial revenues. The Hyperpyron’s declining value accelerates preference for Italian Gold coins in Byzantine territories

1284 – Under Doge Giovanni Dandolo, Venice introduces the Gold Ducat weighing 3.545 grams of 99.47% pure Gold (the highest purity achievable through medieval cupellation techniques), establishing a rival to the Florentine Florin. The Ducat’s slightly higher weight and purity, combined with Venice’s vast maritime trade network, eventually makes it the Mediterranean’s dominant trade coin. When Venice introduces the Ducat, the Great Council decrees the death penalty for mint workers who debase the coinage. This draconian law, combined with rigorous quality control, maintains the Ducat’s purity for over 500 years—an unprecedented achievement in monetary history that makes the Venetian Ducat more trusted than signed contracts. Note that while the coin was initially called a “Ducat” for the Doge (Duke) of Venice, it later became known as the “Zecchino” (sequin), after the Venetian mint, or “Zecca”

1290 – King Edward I of England expels all Jews from the kingdom, partly to seize their Gold and Silver (confiscating Silver assets worth approximately 16,000 Marks for the royal treasury’s enrichment) and cancel debts. The expelled Jewish financiers take their expertise to France and Italian city-states, inadvertently strengthening Florence and Venice’s dominance in international Gold trade and banking

1291 – Fall of Acre eliminates the last major Crusader stronghold in the Holy Land, ending direct European military presence and forcing adaptation to Islamic-controlled Gold trade networks

1294 – Pope Boniface VIII issues Gold Florins from the papal mint, acknowledging Florence’s monetary leadership. The papacy’s adoption of Florentine standards demonstrates the Florin’s dominance in Italian commerce

1300 – The Serbian King, Stefan Milutin, develops the Novo Brdo Silver mines in the Balkans – establishing the foundation of a major Silver center that would reach peak output in the 15th century

1300-1500 – Hungarian Gold mines, particularly in Kremnica (Körmöcbánya) in modern Slovakia and other locations in the Carpathian Mountains, produce approximately 450,000-500,000 kilograms of Gold during this two-century period, with annual output reaching approximately 1,400-2,250 kilograms. From the 1330s until the Spanish conquest of the Americas in the 1490s, this represented approximately 30% of world Gold production. Hungary becomes medieval Europe’s primary indigenous Gold source before New World discoveries

1310 – German mining guilds introduce water-powered ore crushing mills at Freiberg, increasing Silver extraction efficiency by approximately 40% through mechanization

1311 – Charles I (Károly Róbert) of Hungary begins systematic Gold coinage exploiting ancient Roman Gold mines after consolidating power following the assassination of his rival Amadeus Aba. Hungarian Gold Florins, initially called “floreni” after the Florentine model, became known as “forint” and achieved wide international acceptance

1312-1337 – Mansa Musa rules the Mali Empire, controlling vast West African Gold resources in Bambuk, Bure, and other Gold-producing regions. Mali becomes the world’s largest Gold producer, supplying 60% or more of Europe’s Gold through trans-Saharan trade. The Mali empire accumulates Silver through trans-Saharan trade networks, holding substantial reserves in Timbuktu treasuries. Mansa Musa’s legendary pilgrimage to Mecca (from 1324-1325) passes through Cairo, where his extravagant spending and gift-giving floods the Egyptian Gold market. Contemporary Arab chroniclers report that his caravan included 60,000 people, including 12,000 slaves, along with 80-100 camels carrying substantial quantities of Gold. His distribution of Gold caused approximately 20-25% devaluation of the Gold Dinar in Cairo, disrupting the Egyptian economy for approximately 12 years. Al-Umari, visiting Cairo 12 years later, found residents still discussing Musa’s unprecedented generosity

1317 – A violent conflict erupts in Florence between rival banking families over control of Gold exchange rates. The violence becomes so severe that armed guards must protect the money changers’ tables on the Ponte Vecchio Bridge

1325 – The Aztec Empire establishes Taxco Silver mining operations in Mexico, producing ornamental Silver for Tenochtitlan temples and elite residences in pre-Columbian Mesoamerica

1327-1377 – Edward III of England issues various Gold denominations attempting to establish stable English Gold coinage. His Gold Noble and its derivatives become England’s standard Gold coins

1330 – Bohemian mines introduce horse-powered hoisting systems, advancing mining technology and enabling shaft depths of 250 meters for Silver ore extraction

1335 – The Mongolian Il-Khanid Dynasty collapse disrupts Persian Silver Dirham production, fragmenting Middle Eastern monetary systems across successor states

1337-1453 – The Hundred Years’ War between England and France creates massive demand for Gold to finance armies, driving both kingdoms to develop more sophisticated Gold coinages and seek new bullion sources

1341-1357 – Byzantine civil wars between John V Palaiologos and John VI Kantakouzenos further bankrupt the empire. The Byzantine civil wars between John V Palaiologos and John VI Kantakouzenos were actually two separate conflicts, one from 1341–1347 and another from 1352–1357. The first war began after the death of Emperor Andronikos III, when Kantakouzenos and the regency for the young John V both claimed the throne. The second war was a continuation of this conflict after a brief truce, with John V fighting against both John VI Kantakouzenos and his son Matthew Kantakouzenos. John V eventually emerged as the sole emperor, but the continued fighting devastated the empire. The Byzantine Hyperpyron ceases regular circulation as a physical coin following the joint reign of John V and John VI, remaining only as an abstract money of account for bookkeeping. Actual transactions increasingly use Venetian Ducats or Genoese coins. The disappearance of Byzantine Gold coinage marks the effective end of Roman monetary tradition stretching back to Constantine I’s Solidus (310 CE)

1343-1346 – After the collapse of major Florentine banking houses (Bardi in 1343 and Peruzzi in 1346) due to Edward III of England’s default on massive war loans, approximately 300 Florentine families are bankrupted overnight. The crisis temporarily disrupts Gold Florin production and sends shockwaves through European financial markets, demonstrating the interconnected nature of medieval international finance

1344 – England issues the Gold Leopard (formally called a “double Florin”) worth 72 Pence (6 Shillings), beginning England’s first sustained Gold coinage program. The coin features Edward III enthroned with two leopards. However, Gold ratio problems lead to its quick replacement by the Noble in the same year

1348 – The Black Death pandemic kills an estimated 30-40% of the European population, dramatically reducing Continental Gold and Silver production and causing severe coinage shortages. Arctic ice core analysis shows lead pollution, a byproduct of Silver smelting, dropped between 1349-1353

1350-1439 – The Roman Senate (revived as a municipal government in medieval Rome) strikes Gold Zecchini closely imitating Venetian Ducat designs, acknowledging Venice’s monetary supremacy, even in the papacy’s own city

1354 – The Rhenish Florin (Gulden) is formally established through monetary convention among Rhine valley cities and principalities. Initially matching the Florentine Florin at approximately 3.43 grams of Gold, the Rhenish Florin suffers gradual debasement, declining to 2.76 grams by 1419 as authorities extract profit through repeated reductions in weight and fineness

1356 – The Golden Bull of Emperor Charles IV, the constitutional document of the Holy Roman Empire, specifies that electors’ payments and ceremonial gifts must be made in Gold coins of specific weights. The document includes detailed descriptions of proper Gold coinage, reflecting how monetary standards become inseparable from political legitimacy

1360 – The Hanseatic League controls Silver trade in the Baltic, worth approximately 300,000 Marks annually, connecting Scandinavian, German, and Russian commercial networks through the northern European trade federation; The Treaty of Brétigny between England and France requires France to pay 3 million Gold écus (approximately 10 tons of Gold) as ransom for King John II of France. The sum is so enormous that France must levy special taxes and melt down church Gold to raise it, and full payment takes years, impoverishing the French kingdom

1369 – Tamerlane (Timur) begins his conquests in Central Asia, eventually controlling territories from Turkey to India. His empire maintains Gold coinage traditions inherited from previous Islamic dynasties

1370 – The Timurid Empire of Tamerlane captures Persian Silver mines, minting Taka coins at Samarkand for Central Asian Silk Road trade under Timur’s expanding empire

1375 – The Catalan Atlas, produced by Jewish cartographer Abraham Cresques on Majorca for the French crown, depicts Mansa Musa seated on a throne in West Africa holding a Gold nugget and scepter. This influential map spreads knowledge of West African Gold wealth to European royal courts and inspires Portuguese interest in accessing African Gold sources directly by sea

1377 – The Goryeo Dynasty of Korea develops Silver mining at the Tanch’on deposits, producing Silver for coinage and tribute payments to China

1380 – The Ottoman Empire captures the important Serbian Novo Brdo mines, securing access to Balkan Silver for military expansion and beginning the Ottoman Empire’s control over southeastern European Silver production

1380-1422 – French King Charles VI issues Gold écus d’or during the Hundred Years’ War to finance military campaigns. The coin features the French royal shield and maintains relatively good quality despite wartime pressures, helping establish French Gold currency credibility

1396 – Battle of Nicopolis sees Ottoman victory over European crusaders, demonstrating Ottoman military superiority. Ottomans begin developing their own Gold coinage systems, initially imitating Mamluk and Venetian models

1400 – The Kuttenberg (Kutná Hora) mines in Bohemia produce approximately 6-7 tonnes of Silver annually at peak production, representing about one-third of total European Silver output in the late 14th century – making it the most productive European mining center. The Bohemian mines at Kuttenberg reached a 300-meter depth using improved drainage technology, pushing the technological limits of medieval mining

1401 – The Byzantine Emperor Manuel II Palaiologos embarks on a humiliating journey through Western Europe, personally begging for Gold subsidies to save Constantinople from Ottoman conquest. European kings treat him with ceremonial respect, but offer minimal Gold assistance, preferring to let the Byzantine Empire collapse as a buffer against Ottoman expansion

1402 – Tamerlane defeats the Ottoman Sultan Bayezid I at the Battle of Ankara, temporarily disrupting Ottoman expansion. Timurid Gold coins circulate across Persia and Central Asia

1415 – Portuguese forces capture Ceuta in Morocco, initiating Portugal’s systematic exploration and exploitation of West African coastal Gold resources. This marks the beginning of European attempts to bypass trans-Saharan trade controlled by Muslim merchants and access African Gold directly

1420 – Gold flows from Venice to the Mamluk Sultanate through the Fondaco dei Tedeschi (German trading house in Venice), which serves as a hub for Central European Gold flowing to Egypt in exchange for spices, textiles, and other luxury goods from the Indian Ocean trade network; The Hussite Wars disrupt Bohemian Silver mining at Kuttenberg, reducing Central European Silver production during the decade-long religious conflict

1422 – A Chinese official visiting Hormuz in the Persian Gulf reports seeing bazaars where “Gold Dinars are piled up like firewood,” describing the enormous quantities of Gold flowing through Indian Ocean trade routes between Africa, the Middle East, and Asia

1429 – The Mamluk Sultan Barsbay attempts to monopolize all pepper trade through Egypt, demanding payment exclusively in Gold Dinars. This forces European merchants to ship even more Gold eastward, accelerating the late medieval bullion shortage and motivating Portuguese exploration for direct African Gold access

1432 – The Papal mint in Rome begins issuing Ducats following Venetian standards alongside traditional Florins, acknowledging that multiple Gold currencies circulate in Italy. The papacy’s adoption of the Ducat standard demonstrates Venice’s complete monetary victory over Florence

1434-1494 – The Medici family dominates Florence, using the city’s banking network and the Florin’s international acceptance to become Europe’s premier financiers. Medici banks operate branches throughout Europe, facilitating Gold flows and international payments

1436 – The Ming Dynasty of China begins a gradual transition to Silver-based taxation with its “Gold floral Silver policy” (Jinhua Silver)

1440 – German miners introduce blast furnaces for Silver smelting, increasing ore processing capacity at major mining centers

1441 – Portuguese reach the Gold-producing regions of West Africa directly, establishing trading posts. This begins Europe’s direct access to African Gold sources, bypassing Muslim intermediaries

1442 – Alfonso V of Aragon conquers Naples and southern Italy, establishing a Spanish dynasty that issues Gold Ducats modeled on Venetian types, further spreading Ducat standards

1450 – A Florentine merchant’s account book records that a single Gold Florin can purchase enough grain to feed a family of four for one month, or pay a skilled mason’s wages for one week, providing a glimpse of Gold’s immense purchasing power in daily medieval life; The Burgundian Duke, Philip the Good, accumulates a Silver treasury worth approximately 400,000 Marks through taxation and Low Countries trade monopolies; The Novo Brdo mines in Serbia produce approximately 6,000 kilograms of Silver annually at peak production, representing a significant portion of Balkan Silver output. Novo Brdo was famous for “glam Silver” (argentum de glama), which was actually a natural Silver alloy composed of 16-33% Gold by weight, making Serbian Silver particularly valuable in international trade

1452-1455 – Pope Nicholas V authorizes Portugal to conquer and enslave non-Christians in West Africa, explicitly linking the papal blessing to Portuguese access to African Gold mines. This makes the papacy complicit in the African slave trade in exchange for Portuguese Gold flowing to Rome. The authorization occurs in a series of Papal Bulls: (1) the Dum Diversas (June 18, 1452). This bull explicitly authorized King Afonso V of Portugal to “invade, search out, capture, vanquish, and subdue all Saracens and pagans whatsoever, and other enemies of Christ” and to reduce them to “perpetual slavery”; and (2) the Romanus Pontifex (January 5, 1455). This bull reinforced and extended the previous one, granting Portugal a monopoly of trade in the newly “discovered” lands of West Africa and essentially sanctifying the seizure of non-Christian lands and the enslavement of their inhabitants as a means to expand Christian dominion and counter Muslim power

1453 – Ottoman Sultan Mehmed II conquers Constantinople, definitively ending the Byzantine Empire and its millennium-long Gold currency tradition stretching back to Constantine the Great’s Solidus. The fall of Constantinople sends shockwaves through Christian Europe and marks the final chapter in Roman monetary history

1455 – The printing of the Gutenberg Bible requires investors to advance approximately 300 Gold Florins—equivalent to three years’ wages for a craftsman. Johannes Gutenberg never fully repays his debts and loses control of his printing press, despite revolutionizing European culture; The Ottoman conquest of the Novo Brdo fortress ends Serbian control of the Novo Brdo mines, which shift to producing Akçe coins and promoting the Ottoman monetary system

1455-1487 – The Wars of the Roses in England create demand for Gold to finance rival claimants to the throne. Both Yorkist and Lancastrian factions issue Gold Nobles and related denominations

1457-1464 – The Great Bullion Famine strikes Europe, causing severe shortage of precious metals for coinage. The shortage causes severe economic disruption and stimulates search for new bullion sources

1460 – The Fugger banking family begins financing Tyrolean Silver mining operations at Schwaz

1465 – England creates the Gold Rose Noble worth 120 Pence (10 Shillings) featuring a rose on the ship design, and the Gold Angel, worth 80 Pence, showing Archangel Michael slaying a dragon. The Angel becomes England’s standard Gold coin for over a century, circulating widely in European trade

1468 – Charles the Bold, Duke of Burgundy, commissions a 570-page illuminated manuscript paying the artists 800 Gold Florins. A single page thus costs approximately 1.5 Florins—more than a week’s wages for the skilled artisans creating it

1470 – The Inca Empire controls the Porco Silver mines in Bolivia, producing Silver for the imperial treasury and religious ceremonies at Cusco

1471-1478 – Ivan III of Moscow accumulates Silver through his Novgorod conquest, seizing treasuries containing approximately 3,000 Marks from Hanseatic merchants during the expansion of Muscovite power. Ivan III conquered Novgorod in two phases: A decisive military victory in 1471 at the Battle of Shelon, which led to a treaty, and the final annexation of the city in 1478. The 1471 victory weakened Novgorod, and Ivan completed the conquest by besieging and taking the city in 1478, dissolving its government and incorporating it into the Grand Duchy of Moscow

1475 – The Spanish Crown establishes a Royal monopoly over Silver production in Granada, collecting a 20% tax (quinto real) on all extracted Silver

1478 – Ottoman Sultan Mehmed II introduces the Gold Sultani (also called Altun), modeled on the Venetian Ducat, establishing Ottoman Gold coinage that will continue until the 20th century

1479 – Treaty of Alcáçovas between Portugal and Spain divides African trade rights, with Portugal securing exclusive access to Gold Coast trade. This diplomatic agreement ensures Portuguese control of African Gold supplies

1482 – Portuguese establish São Jorge da Mina (Elmina Castle) on the Gold Coast of West Africa, securing direct access to West African Gold. This fort becomes the center of Portuguese Gold trade, handling hundreds of kilograms annually

1485 – The German Schwaz Silver mines in Tyrol reach peak Silver production of approximately 15 tons annually, financing Habsburg territorial acquisitions and making Schwaz one of Europe’s largest Silver producers

1488 – Portuguese explorers establish Silver trade with West African kingdoms, exchanging European Silver for Gold at Elmina trading posts on the Gold Coast

1489 – England mints its first Gold Sovereign under Henry VII, the first English £1 (20 Shilling) Gold coin. The large, impressive coin features a highly detailed portrait of the king enthroned on the obverse. The Sovereign becomes England’s premier Gold coin

1493 – The Spanish Crown finances Columbus’s second voyage with Silver loans worth 1.5 million Maravedis. On the eve of Columbus’s departure, the Spanish monarchs Ferdinand and Isabella’s entire annual revenue is approximately 5 million Maravedís—roughly equivalent to 12,500 Gold Ducats, or about 44 kilograms of Gold. Within decades, Spanish America will produce this quantity monthly, revolutionizing the global economy

1494 – Spanish conquistadors first discovered Gold on the island of Hispaniola (modern Dominican Republic/Haiti), marking the beginning of European Gold extraction in the Americas; The Treaty of Tordesillas establishes Spanish-Portuguese colonial boundaries, unknowingly dividing important, future, American Silver production zones

c. 1495 – The Holy Roman Empire introduces Guldengroschen Silver coins, weighing 29.2 grams, standardizing large-denomination currencies for international commerce and establishing a model for the later Thaler coinage

1497 – Vasco da Gama’s Indian Ocean expedition carries approximately 8,000 Cruzados worth of Silver for trade with Asian merchants at Calicut

1500 – Global Silver production reaches an estimated 250 tons annually, with European mines (particularly Bohemian, Saxon, and Tyrolean operations) providing the majority of the output

1503 – The Spanish Crown established the Casa de Contratación in Seville on January 20, 1503, to regulate all trade with the Americas, creating a monopoly system that would control trans-Atlantic commerce (including Silver shipments) for nearly three centuries until its transfer to Cádiz in 1717 and final abolition in 1790

1519 – Spanish conquistador Hernán Cortés arrived at Tenochtitlan on November 8, 1519, where the Aztec emperor Moctezuma II received him with gifts of Gold and Silver artifacts. Following the capture of Moctezuma, Spanish forces ransacked the city’s treasuries and melted ceremonial objects, though much treasure was lost during the chaotic retreat of La Noche Triste on the night of June 30, 1520

4. Final Thoughts

When Cortés arrived at Tenochtitlan in 1519, Moctezuma’s gifts of Gold artifacts inaugurated a plunder that would flood Europe with American precious metals, trigger price revolutions, finance imperial expansion, and establish European economic dominance lasting centuries. 

The medieval monetary world—characterized by Byzantine Gold’s slow extinction, Islamic Dinar supremacy, and European Silver scarcity—was about to be obliterated by American bullion flows that no medieval observer could have anticipated.

Thanks for reading!

5. Appendix

Here are some other articles on Gold you may enjoy:

• A History Of Gold In The Middle Ages – here.
• A History Of Gold In The Early-Modern Era – here.
• A History Of Gold In The Modern Era – here.
• A Complete History Of Gold: From Prehistory To The Modern Era – here.
• 49 Interesting Facts About Gold – here.
• Why Is Gold At The Base Of Exter’s Inverted Pyramid Of Risk? Counterparty Risk – here.
• What’s The State Of Gold Nanoparticles (AuNPs) Materials Innovation In 2025? – here.

Here are some other articles on Silver you may enjoy:

• A History Of Silver In The Middle Ages – here.
• A History Of Silver In The Early-Modern Era – here.
• A History Of Silver In The Modern Era – here.
• A Complete History Of Silver: From Precious Metal To Industrial Necessity – here.
• 58 Things You Might Not Know About Silver – here.
• What Are Silver Quantum Dots? A Complete History From Faraday To Quantum Photonics – here.
• What Are Silver Nanowires? A Complete History From Feynman To Industrial Adoption – here.
• A History Of Silver Nanoparticles: From Victorian-Era Curiosity To Quantum Frontiers – here.