Executive Summary

This article examines the history of gold and silver during the early-modern era, from 1500-1800 CE, a period that witnessed the most dramatic transformation in global precious metals flows in human history, as Spanish conquistadors stumbled upon mountain ranges made of Silver, Portuguese traders channeled West African Gold into European markets, and new refining technologies enabled extraction from ores that earlier generations would have deemed worthless. 

These developments restructured international commerce, financed continental wars, and bound distant economies into integrated networks that prefigured modern globalization.

Table Of Contents

1. Introduction

2. History (1500-1800 CE)

3. Chronology

4. Final Thoughts

5. Appendix

1. Introduction

When Spanish soldiers stumbled onto Potosí’s silver-rich Cerro Rico in 1545, they had discovered a mountain that would produce more than half the world’s silver for the next century. When Portuguese bandeirantes found gold in Minas Gerais’ streambeds in the 1690s, they triggered a rush that would temporarily make Portugal the wealthiest nation in Europe. 

But these discoveries didn’t simply add precious metals to existing trade networks—they created entirely new economic systems and connected continents.

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 – here.
• A Complete History Of Gold And Silver – [coming soon]

2. History (1500-1800 CE)

The Spanish Conquest and American Treasure

In 1519, Hernán Cortés arrived at the Aztec capital of Tenochtitlan, where Emperor Moctezuma II received him with gifts of Gold and Silver artifacts. What followed during La Noche Triste on June 30, 1520, captures the conquistador mindset perfectly: fleeing Spanish soldiers drowned in Lake Texcoco, weighed down by stolen Aztec Gold they refused to abandon even as Cortés’ army of 500 was nearly annihilated. Those who survived would eventually ransack the city’s treasuries and melt ceremonial objects into bullion for shipment to Spain.

The conquest of Peru proved even more lucrative. In 1532, Francisco Pizarro captured the Inca emperor Atahualpa at Cajamarca with just 168 men, demanding a ransom of one room filled with Gold and two rooms filled with Silver. Atahualpa delivered over 6,000 kilograms of 22.5-carat Gold—valued at over 1.3 million Pesos and representing the largest ransom in history. The Spanish executed him by garrote on August 29, 1533, despite his fulfilling the ransom. Pizarro then seized the Gold-covered Coricancha Temple of the Sun in Cuzco, completing the Spanish conquest of Peru and gaining access to mineral wealth that would transform global economics.

The true prize emerged in 1545, when indigenous prospector Diego Huallpa discovered the Cerro Rico mountain at Potosí in present-day Bolivia. The Silver ore contained up to 40% pure Silver—extraordinarily rich by any standard. By 1560, Potosí produced approximately 300 tons of Silver annually, eventually supplying 60% of the world’s Silver during the second half of the 16th century. The following year, the Zacatecas mines opened in Mexico after Juan de Tolosa discovered Silver-bearing rocks shown to him by local Indians, establishing production facilities that would eventually produce 20% of all Mexican Silver by the 18th century.

Spanish crown Silver revenues during the 1570s averaged approximately 5-8 million Pesos annually, funding not only Dutch campaigns, but also separate Mediterranean operations against the Ottoman Empire. And, in 1588, Philip financed the Spanish Armada using American Silver, spending approximately 10 million Ducats on the failed invasion fleet—originally budgeted at 3.5 million Ducats.

Global Networks: Manila Galleons and Asian Silver Demand

The Silver flowing from American mines didn’t remain in Europe. In 1565, Andrés de Urdaneta established the Manila galleon trade route, connecting Asian markets with American precious metals. These ships carried millions of Silver pesos from Acapulco to the Philippines in exchange for Chinese silk, porcelain, and spices, creating the first sustained trans-Pacific economic system.

China represented the ultimate destination for much of this Silver. By 1630, Chinese demand reached 34-111 tons annually according to scholarly estimates, with Manila galleon trade, Japanese exports (40-75 tons during peak periods), and European merchants via Indian Ocean routes all contributing. The Qing Dynasty formalized this dependency in 1665 by requiring land taxes paid in Silver, creating sustained demand that would continue throughout the dynasty’s rule. Between 1720 and 1740, China received approximately 100 tons of Silver annually on average, making it the world’s largest Silver consumer.

This Asian demand integrated economies across three continents: Spanish Silver coins—the famous “pieces of eight”—circulated across the Ottoman Empire, Persian Safavid Empire, and Mughal India by 1580, despite political rivalries between European and Islamic powers. The Mughal Empire under Jahangir (1605-1627) minted Silver rupees weighing approximately 11.4-11.5 grams with 96% or higher purity, establishing a monetary standard that would continue through British colonial rule. Japanese Silver mines, including Iwami Ginzan, produced substantial quantities by 1595, with much flowing to Chinese markets through Portuguese and Dutch intermediaries at Nagasaki.

Dutch Commercial Expansion and Seizure of Trade Networks

The Dutch Republic emerged as Spain’s primary commercial rival, challenging Spanish and Portuguese monopolies through a combination of advanced finance and military force. The Dutch East India Company (VOC) formed in 1602 with initial capital of 6.5 million Guilders, establishing a corporation that would transport millions of Silver coins annually to purchase Asian goods. In 1609, the Bank of Amsterdam created a Silver-backed deposit banking system, accepting foreign Silver coins at standardized values and issuing transferable bank credits that reduced the need for physical Silver transport—innovations that facilitated Dutch commercial expansion during their Golden Age.

The Dutch West India Company, formed in 1623, took a more aggressive approach in the Atlantic. In 1628, privateer Piet Heyn captured the Spanish fleet near Cuba, seizing 177,000 Dutch troy pounds of Silver worth 11.5 million Guilders—the largest single Silver capture in maritime history. This windfall funded Dutch military operations for an entire year. The Dutch also attacked Portuguese positions, capturing Elmina Castle on the Gold Coast in 1637 and taking control of West African Gold trade that had enriched Portugal since the 1500s, when Portuguese traders handled approximately 400-550 kilograms of West African Gold annually.

The Portuguese Empire and Brazilian Gold

While Spain exploited American Silver, Portugal discovered Gold that would temporarily make it Europe’s wealthiest nation. In the 1690s, bandeirantes (Portuguese colonial explorers) discovered large Gold deposits in Minas Gerais, Brazil, with Manuel Borba Gato’s 1695 discovery at Rio das Velhas triggering the first modern Gold rush. Over the next three decades, 400,000 Portuguese and 500,000 enslaved Africans flooded the region.

The Gold wealth proved staggering. By 1720, half of Brazil’s entire population resided in Minas Gerais, representing a massive demographic shift. The Portuguese Crown established the Royal Fifths tax (quintos) in 1701, requiring 20% of all production be paid to the monarchy. By 1750, Brazil produced 10-15 tons of Gold annually, supplying much of Europe’s Gold. Further discoveries followed: Gold on the Cuiabá River in 1718, extending Portuguese settlement 1,400 kilometers northwest into the interior, and Bom Jesus de Cuiabá, producing 400 arrobas (14,000 pounds) of Gold monthly at its peak.

British Monetary Evolution and the Gold Standard

Britain’s relationship with precious metals evolved dramatically during this period. King Charles II introduced the Gold Guinea coin on February 6, 1663—the first machine-struck Gold coin containing approximately 8.4 grams of 22-carat Gold, originally worth 20 Shillings. The Guinea quickly became Britain’s primary Gold coin, with variations including two Guinea pieces (1668) and Half-Guinea coins (1669).

A turning point came in December 1717, when Isaac Newton, serving as Master of the Mint, fixed the Guinea’s value at 21 Shillings by Royal Proclamation. Newton set the Gold-Silver ratio at 15.2:1, undervaluing Silver relative to Continental European rates. This caused Silver coins to flow out of Britain toward markets where they commanded higher Gold exchange rates—a textbook demonstration of Gresham’s Law. Britain effectively moved to a de facto Gold standard.

The Guinea remained in production until 1799, when Gold scarcity from the French Revolutionary Wars halted minting, with a final special run of exactly 80,000 Guineas in 1813 for the Duke of Wellington’s army in the Pyrenees—Spanish locals would accept only Gold coin for supplies. In 1816, the Sovereign (weighing 7.98 grams of 22-carat Gold and valued at exactly 20 Shillings) officially replaced the Guinea as part of the Great Recoinage Act. Britain formally adopted the Gold standard, relegating Silver to subsidiary coinage limited to transactions under 40 shillings and ending Silver’s role as primary monetary metal in the British Empire.

3. Chronology

This chronology traces the discoveries, technological innovations, and policy decisions that transformed local mining operations into global economic systems during the early-modern era:

1500s – Portuguese traders handle approximately 400-550 kilograms of West African Gold annually through their coastal forts and trading posts, particularly São Jorge da Mina (Elmina) on the Gold Coast (modern Ghana). This Gold, brought from interior sources by African merchants, enriches Portugal and helps finance the Portuguese maritime empire’s expansion into Asia

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 Gold and Silver shipments) for nearly three centuries until its transfer to Cádiz in 1717 and final abolition in 1790

1508 – Spanish Gold prospecting expanded to Puerto Rico as conquistadors searched for new sources of the precious metal

1509 – Spanish expeditions reached Jamaica in their quest for Gold, expanding the search throughout the Caribbean

1511 – Cuba was conquered by the Spanish and proved to be the best source of Gold in the Caribbean islands discovered thus far; Holy Roman Emperor Maximilian I introduced Gold Ducats, standardizing Central European Gold currency

1513 – Vasco Núñez de Balboa crossed the Isthmus of Panama, became the first European to sight the Pacific Ocean, and opened new routes for Gold transport

1519-1520 – 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. During La Noche Triste (Night of Sorrows), fleeing Spanish conquistadors drowned in Lake Texcoco, weighted down by stolen Aztec Gold, with treasure lost forever in the waters as Cortés’ army of 500 was nearly annihilated

1524 – Spanish expeditions led by conquistadors Juan de Cabra and Juan de Salcedo explored the Taxco region starting in 1524, initially finding copper and Gold placers, with Silver mining operations under Spanish administration developing in the area by the early 1530s using indigenous labor under the encomienda system; Pedro de Alvarado led the conquest of the Maya in Guatemala, seeking Gold and establishing Spanish control

1528 – Francisco Pizarro first made contact with the Inca Empire at Tumbes, beginning Spanish exploration of Peru’s Gold resources

1529 – The Treaty of Zaragoza (signed April 22) between Portugal and Spain divided the world. Portugal paid Spain 350,000 Gold Ducats to relinquish its claim to the Moluccas (Spice Islands). The treaty established a new line of demarcation in the East, with Portugal controlling the Moluccas and Spain controlling the Philippines

1532-1533 – With a force of just 168 Spaniards, Francisco Pizarro captured the Inca emperor Atahualpa at Cajamarca on November 16, 1532, demanding a ransom of a room filled with Gold and two rooms filled with Silver. Atahualpa’s Gold ransom of over 6,000 kg (13,420 lbs) of 22.5-carat Gold was paid to the Spanish in 1533, valued at over 1.3 million Pesos—the largest ransom in history. The treasure was collected from across the empire. Atahualpa was executed by garrote on August 29 despite fulfilling his ransom promise. Pizarro entered the Inca capital of Cuzco on November 15, completing the Spanish conquest of Peru and seizing the Gold-covered Coricancha Temple of the Sun

1535–1536 – The Spanish Crown authorized establishment of the Mexico City mint by royal decree on May 11, 1535, under Viceroy Antonio de Mendoza. The mint began producing Silver coins including the famous 8-Real pieces (later known as “pieces of eight”) in April 1536, creating what would become one of the world’s most widely circulated currencies for the next three centuries

1545 – Indigenous prospector Diego Huallpa (or Diego Gualpa) discovered the Cerro Rico mountain at Potosí in present-day Bolivia in 1545, revealing Silver ore deposits that contained up to 40% pure Silver and reached peak production in the 16th-17th centuries, creating what would become the world’s most productive Silver mine – producing an estimated 60% of the world’s Silver during the second half of the 16th century

1546 – The Zacatecas Silver mines in Mexico were discovered on September 8, 1546, by Juan de Tolosa after local Indians showed him Silver-bearing rocks from Cerro de la Bufa. Mining operations began under Spanish administration, establishing production facilities that would make Zacatecas one of Mexico’s most productive mining centers, eventually producing 20% of all Mexican Silver by the 18th century

1550s – The Potosí mines expanded production capacity, reaching approximately 300 tons of Silver annually by 1560 through traditional smelting methods, with Silver processed in wind-powered furnaces called “huayras” at elevations above 4,000 meters

1554 – The Manila galleon Espiritu Santo was lost, one of many ships carrying Gold coins and Silver ingots that would be wrecked over the centuries

1554-1555 – Bartolomé de Medina developed the patio process for Silver amalgamation using mercury in Pachuca, Mexico, creating a method that would enable profitable extraction of Silver from lower-grade ores and transform American Silver production

1556 – The Habsburg Spanish Empire under Philip II began receiving growing Silver revenues from American mines, with shipments that would reach 200 tons annually by the late 1560s

1560s – The Ottoman Empire’s Silver Akçe coin experienced significant debasement under Suleiman the Magnificent to fund military campaigns against the Safavid Empire and European powers

1563-1571 – Indigenous Peruvian leader, Gonzalo Navincopa, revealed the existence of Santa Bárbara mercury deposits to the Spanish in 1563. While some accounts mention Amador de Cabrera as the official discoverer or claimant of the mines in 1564, sources confirm it was Navincopa who showed the Spanish the mercury source. Other accounts mention that, in 1564, Amador de Cabrera confirmed Navincopa’s Santa Bárbara mine discovery of 1563. In either case, the mine became strategically vital as the only significant source of mercury in the Americas for the amalgamation process used to refine Silver from Potosí and other mines. This discovery led to a mining boom and the subsequent founding of the town of Huancavelica, Peru, in 1571

1565 – The Manila galleon trade route was established by Andrés de Urdaneta, connecting Asian markets with American precious metals, transporting millions of Silver Pesos from Acapulco to the Philippines in exchange for Chinese silk, porcelain, and spices, creating the first sustained trans-Pacific economic connection and commerce system

1565-1568 – Spanish authorities established the Lima mint in Peru in 1565, producing Silver coins from Potosí ore starting in 1568 – and eventually becoming a South American monetary center

1568-1648 – The northern provinces of the Habsburg Netherlands rebelled against the Spanish rule of Phillip II because of oppressive taxes, religious persecution, loss of political autonomy, and military occupation. Philip II then used American Silver revenues to expand military forces in the Netherlands, which grew from approximately 3,000 Spanish regulars in 1566 to over 60,000 troops by the 1580s. Despite the availability of American Silver to the Spanish, this Dutch revolt, also known as the Eighty Years’ War (1568–1648), resulted in the establishment of the independent Dutch Republic and the rise of the Netherlands as a major European power

1570 – Bartolomé de Medina’s mercury amalgamation process (developed 1554-1555) was in widespread implementation across Mexican Silver mines by 1570, enabling profitable extraction from lower-grade ores throughout New Spain’s mining districts

1571 – Philip II of Spain’s Mediterranean fleet operations against the Ottoman Empire were largely defined by the Holy League alliance and its decisive victory at the Battle of Lepanto in 1571. Lepanto marks the last major engagement in the Western world to be fought almost entirely between rowing vessels, and the Ottoman fleet almost completely destroyed – but quickly rebuilt. Substantial portions of Philip II’s military campaigns against the Ottomans and in the Mediterranean were financed with American Silver; Sources note that Spanish Crown Silver revenues from the Americas during the 1570s averaged approximately 5-8 million Pesos annually

1572-1578 – To process Gold and Silver into coins, Spanish colonial Viceroy Francisco de Toledo founded the Casa de la Moneda (Royal Mint) at Potosí – reducing transportation costs and Silver losses during the 500-kilometer journey across the Andes mountains. While the mint was founded in 1572, the first coins were minted there in 1574. Francisco de Toledo also established the mita system at Potosí, forcing indigenous Andean communities to provide rotating labor quotas. By the late 1570s, when fully implemented, approximately one-seventh of the male tributary population from sixteen highland provinces was required to serve annually in mining operations. As a result, Potosí’s population eventually reached approximately 80,000-100,000 inhabitants, making it one of the world’s largest cities (larger than London or Paris at the time)

1580 – Spanish Silver coins (“pieces of eight”) began circulating across the Ottoman Empire, Persian Safavid Empire, and Mughal India through trade networks, with Asian merchants increasingly accepting Spanish Silver – despite political rivalries between European and Islamic powers. This circulation would expand significantly in subsequent decades; The Iberian Union joined Spanish and Portuguese crowns under Habsburg rule, strengthening trade of Gold and other resources between Africa, America, and Asia. The union started in 1580, after Philip II of Spain became the King of Portugal, and ended in 1640, when Portugal regained its independence in the Portuguese Restoration War

1588 – Philip II financed the Spanish Armada using American Silver revenues, spending approximately 10 million Ducats on the failed invasion fleet (originally budgeted at 3.5 million Ducats)

c. 1595 – Japanese Silver mines, including Iwami Ginzan, produced substantial quantities of Silver annually under Toyotomi Hideyoshi’s government, with much of this Silver flowing to Chinese markets through Portuguese and Dutch intermediaries at Nagasaki. Japan emerged as one of the world’s major Silver producers during this period

1596 – The Manila galleon San Felipe was wrecked in Japan while carrying Gold and Silver from the Americas

1600-1603 – The Tokugawa shogunate, established in 1603 after Tokugawa Ieyasu’s victory at Sekigahara in 1600. The Tokugawa shogunate established a standardized, tri-metallic currency system in 1601 that included Gold, Silver, and copper coins. As part of this system, Silver chōgin (larger Silver ingots) and mameita-gin (small, bean-shaped Silver coins, also known as “bean money”) were officially introduced and circulated in substantial quantities as the primary domestic Silver currency. Gold reserves were for international trade settlements

1602 – The Dutch East India Company (VOC) formed with initial capital of 6.5 million Guilders, subscribed in mixed forms including coin and credit, establishing a corporation that would transport millions of Silver coins annually to purchase Asian textiles, spices, and porcelain for European markets

1605 – Spanish American Silver production reached approximately 270-280 tons annually (10-10.5 million Pesos equivalent), with the Spanish Crown collecting the “quinto real” (royal fifth tax) of approximately 2.0-2.1 million Pesos, while the remainder supported miners, colonial administration, and international commerce

1605-1627 – The Mughal Empire under Jahangir controlled Indian Silver coinage production, minting Silver Rupees weighing approximately 11.4-11.5 grams with 96% or higher purity, establishing a monetary standard that would continue through subsequent dynasties and British colonial rule

1609 – The pan amalgamation process for extracting Gold and Silver was invented in Potosí, improving mining efficiency; The Bank of Amsterdam (Wisselbank) established a Silver-backed deposit banking system, accepting foreign Silver coins at standardized values and issuing transferable bank credits that reduced the need for physical Silver transport in international commerce. These Silver-backed banking operations would facilitate Dutch commercial expansion during the Golden Age of Dutch trade

1622 – The Spanish galleon Nuestra Señora de Atocha sank during a hurricane off the Florida Keys carrying 40 tons of Gold and Silver, becoming one of history’s most famous treasure wrecks (discovered in 1985 by Mel Fisher)

1623 – The Dutch West India Company formed with approximately 7.1 million Guilders in capital, focusing on Atlantic trade and seizure of Spanish precious metals assets through military seizure, as part of the ongoing Eighty Years’ War 

1625 – The Dutch West India Company initiated attacks on Portuguese Gold trading posts in West Africa – the Battle of Elmina – as part of the broader Dutch-Portuguese War

1628 – Dutch privateer Piet Heyn captured the Spanish fleet near Cuba, seizing 177,000 Dutch Troy pounds of Silver worth 11.5 million Guilders, the largest single Silver capture in maritime history and funding Dutch military operations for an entire year

1630 – Chinese demand for Silver reached from 34-111 tons annually, according to scholarly estimates, with Manila Galleon trade contributing significant amounts, Japanese exports contributing 40-75 tons during peak periods, and European merchants shipping additional quantities via Indian Ocean routes, integrating Asian economies into global Silver networks

1633-1639 – The Tokugawa shogunate’s sakoku policy, enacted in a series of edicts from 1633–1639, restricted foreign trade to Nagasaki, limiting Silver exports through licensed Portuguese and Dutch merchants, dramatically reducing Japanese Silver’s role in Asian commerce – forcing Chinese merchants to seek alternative Silver sources. The Tokugawa shogunate’s sakoku policy was in effect until 1854

1637 – The Dutch captured Elmina Castle (established 1482) from the Portuguese, taking control of West African Gold trade along the Gold Coast

1642-1651 – The English Civil War, part of the wider 1639 to 1653 Wars of the Three Kingdoms, costs were financed partly through seizure of Silver plate from Oxford colleges and royalist estates for melting into military coinage

1644 – The Ming Dynasty of China collapsed as multiple crises converged, including peasant rebellions, natural disasters, and Manchu military pressure. Silver shortage contributed to the fiscal crisis by reducing imperial tax revenues and limiting the government’s ability to pay military forces. The Qing Dynasty inherited a Silver-dependent taxation system that required continued imports to maintain state functions

1660 – Spanish colonial Silver production declined to approximately 400-450 tons annually as the richest Potosí ore deposits became exhausted, requiring deeper shaft mining that increased costs and reduced profit margins for colonial mining operations

1663 – King Charles II introduced the Gold Guinea coin in England on February 6, the first machine-struck Gold coin containing approximately 8.4 grams of 22-carat Gold, produced on screw presses and originally worth 20 Shillings

1665 – The Qing Dynasty of China formalized Silver Tael taxation standards, requiring land taxes paid in Silver and creating sustained demand for Silver imports that would continue throughout the dynasty’s rule

1667 – Samuel Pepys recorded in his diary entry of June 13 that the Gold Guinea was trading at 24 to 25 Shillings, showing Gold’s rising value relative to Silver

1668 – Two Guinea Gold pieces (worth 40 shillings) were first issued in England, expanding the Gold coinage denominations

1669 – Half-Guinea Gold coins were first minted in England, further diversifying Gold currency options

1674 – The first “River Gold” Ducat was minted in the Palatinate, featuring Gold extracted from the Rhine River through placer mining

1682 – Following the suppression of the Three Feudatories Rebellion, which lasted from 1673 to 1681, the Qing Dynasty gradually reopened Yunnan province Silver mines to expanded operations to fund military expenses, though official tax records systematically underreported actual production levels, and domestic output never satisfied China’s monetary demand for Silver

1685 – French Huguenot Silversmiths fled to England, the Netherlands, and Prussia following the Revocation of the Edict of Nantes in October, transferring advanced Silver working techniques and establishing Protestant states as centers of luxury Silver production for European aristocratic markets as approximately 200,000-400,000 refugees left France (the Third Anglo-Dutch War began in 1672 as England, in alliance with France, attacked the Dutch Republic)

1685-1688 – Gold Guineas were minted every year during the reign of James II with an average Gold purity of 0.9094 (91% fine)

1689-1697 – Russian mining operations expanded in the Nerchinsk region of Siberia following the Treaty of Nerchinsk (1689), which established borders with China and provided Russia greater access to regional mineral resources, producing modest Silver quantities and beginning sustained Russian efforts to develop domestic sources rather than importing from European or Asian suppliers

1690s – Bandeirantes (Portuguese colonial explorers) discovered large Gold deposits in Minas Gerais, Brazil, in alluvial streams. Manuel Borba Gato discovered Gold at Rio das Velhas in 1695, triggering the first modern Gold rush, transforming the region into the world’s primary Gold source, and attracting 400,000 Portuguese and 500,000 enslaved Africans over the next three decades

1694 – The Bank of England formed with initial capital of £1.2 million raised from 1,268 subscribers in 11 days, establishing government debt financing mechanisms through which England could borrow at 8% interest rather than the previous 14%, enabling military competition without requiring immediate metallic reserves equivalent to expenditures

1696 – English authorities implemented the Great Recoinage, producing approximately £6.8 million in new Silver coins to replace clipped and worn hammered coinage through operations at the Royal Mint and five provincial mints, establishing standardized weights with milled edges, though the process caused temporary monetary contraction and severe economic disruption

Late 17th century – Mexican Silver mines, particularly Zacatecas (producing approximately one-third of Mexican output) alongside Guanajuato and smaller deposits, maintained substantial production levels during a period when Potosí’s output declined, though Mexican mines would not decisively surpass Andean production until after 1700

1701 – The Portuguese Crown established the Royal Fifths tax (quintos) requiring 20% of all Brazilian Gold production be paid to the monarchy; The War of Spanish Succession began, partly over control of Spanish American Silver revenues, with European powers competing to influence the Spanish throne and access the colonial mining operations that had produced approximately 150,000 tons of Silver during the previous two centuries

1702-1703 – Queen Anne minted “VIGO” Gold Guineas, from Gold captured at the Battle of Vigo Bay on October 23, 1702, with these coins among the rarest and most valuable British coins

1707 – The Act of Union between England and Scotland created unified monetary standards for Great Britain, standardizing coinage and monetary policy across the kingdom, though the Pound Sterling’s relationship to Silver standards was evolving as England moved toward Gold-based monetary practices

1708-1709 – Civil war broke out in Brazilian Gold fields between paulistas (São Paulo miners) and emboabas (Portuguese newcomers) over mining rights, the “War of the Emboabas”, lasting until 1709

1710 – Spanish colonial production from Potosí declined to approximately 150 tons annually as operations reached depths of 250-300 meters, requiring expensive drainage systems and timber supports while encountering lower-grade ore bodies compared to the richer near-surface deposits exploited in the 16th century

1711 – Ouro Preto (meaning “Black Gold,” formerly Vila Rica) was established as a major Gold mining center in Brazil

1715 – A hurricane destroyed 11 Spanish treasure fleet ships off Florida’s coast, carrying approximately 14 million Pesos in Silver returning to Spain, demonstrating the vulnerability of maritime Silver transport

1717 – The value of the Gold Guinea was officially fixed at 21 Shillings by Royal Proclamation in December, effectively placing Britain on a de facto Gold standard under Isaac Newton’s guidance as Master of the Mint. Newton fixed the Gold-Silver ratio at 15.2:1, undervaluing Silver relative to Continental European rates, causing Silver coins to flow out of Britain toward markets where they commanded higher Gold exchange rates – demonstrating Gresham’s Law in operation

1718 – Gold was discovered on the Cuiabá River in Brazil by bandeirantes Pascoal Moreira Cabral Leme and Antonio Pires de Campos, extending Portuguese settlement 1,400 km northwest into the interior

1719-1727 – Bom Jesus de Cuiabá was founded as a Gold mining town in western Brazil in 1719, and officially designated a vila (town) in 1727, with the area producing 400 arrobas (14,000 pounds) of Gold monthly at its peak

1720 – Minas Gerais became an official captaincy of Brazil due to Gold wealth, with its own governor; Half of Brazil’s entire population was residing in Minas Gerais due to the Gold rush, representing a massive demographic shift; John Law’s Mississippi Scheme collapsed in France, triggered partly by inflated expectations of Louisiana Gold, causing the first major modern financial crisis and France’s near-bankruptcy

1720-1740 – Chinese Silver imports through Canton trade, Manila galleons, and overland routes, reached peak levels, with ship traffic between Manila and China at its highest between 1720-1740. China remained the world’s largest Silver consumer, receiving approximately 100 tons of Silver annually on average during the 18th century; The Qing Dynasty’s Yongzheng Emperor (r. 1723-1735) implemented the “fire meltage fee” (huohao) reform, consolidating various Silver surtaxes into standardized assessments, though rates varied by province (10-30% on land tax). This reform temporarily increased imperial Silver revenue, but corruption resumed under subsequent reigns

1721 – Russian Tsar Peter the Great intensified state oversight of Siberian mining operations, including Nerchinsk’s lead-Silver deposits, directing revenues toward military modernization and administrative reforms as part of his Westernization program

1725 – Guanajuato emerged as a major Mexican Silver producer as colonial authorities expanded ore processing capacity, using water-powered stamping mills and amalgamation techniques, contributing to Mexican Silver production of approximately 500 tons annually by the mid-1720s

1728 – Chests of supposed Cuiabá Gold opened in Lisbon were found to contain lead instead, revealing widespread fraud in the colony; the culprits were never found

1729-1735 – Pedro Romero de Terreros (later Count de Regla) acquired control of Real del Monte mines in Mexico, which had been settled in the late 16th century. His successful operations made him one of the wealthiest men in New Spain and demonstrated effective private mining enterprise under Spanish colonial authority; British Gold coins minted during this period sometimes bore the letters “EIC” below the king’s portrait, indicating Gold from the East India Company’s Asian trade

1733 – The Molasses Act imposed British duties of six Pence per gallon on foreign molasses imported to North American colonies, requiring payment “in ready Money” before landing. The prohibitively high duties encouraged widespread smuggling

1743-1745 – The Manila galleon Nuestra Senora de la Covadonga was captured in 1743 by Commodore George Anson, during his circumnavigation, with its Gold cargo worth over 1.3 million pieces of eight. British coins from 1745 bore the inscription “LIMA” below the king’s portrait, indicating the Gold or Silver came from Admiral Anson’s capture of this Spanish treasure

1750 – Brazil was producing 10-15 tons of Gold annually, supplying much of Europe’s Gold, and making Portugal temporarily the wealthiest European nation; European mirror manufacturers utilized Silver-mercury amalgam, “mercury mirror”, coating techniques that achieved high reflectivity, with modern protected Silver coatings reaching approximately 95% reflectance in the visible spectrum

c. 1760-1808 – The Bourbon Reforms occurred during the 18th century, primarily under the reign of King Charles III of Spain (1759–1788), but they began earlier in the century, around 1714, and continued through 1808. These were a series of governmental and administrative policies aimed at modernizing and strengthening the Spanish Empire and increasing its control over its colonies in the Americas – reducing mining tax rates and stimulating Mexican Silver production

1764 – British colonial authorities enacted the Currency Act, restricting North American colonies from issuing paper currency as legal tender and effectively requiring hard currency (including Silver) for trade payments, intensifying colonial Silver shortages and contributing to pre-Revolutionary economic grievances

1765 – The Stamp Act required British colonial subjects to pay stamp duties in Sterling (hard currency including Silver), with Britain expecting to collect approximately 60,000 Pounds annually from the tax, draining scarce hard currency from colonial circulation and generating political opposition that contributed to Revolutionary sentiment

1770 – The Guanajuato mines in Mexico became among the world’s most productive Silver sources, with the Valenciana mine complex achieving peak production from 1768-1804 and at times producing up to one-third of world Silver output, establishing Mexican dominance in colonial Silver production during the late 18th century

1776 – Spain created the Viceroyalty of Río de la Plata with Buenos Aires as capital, affecting Gold and Silver trade routes in South America by providing Atlantic access to Potosí Silver; Adam Smith‘s “The Wealth of Nations” analyzed how American Silver discoveries affected European price levels, documenting that Silver’s purchasing power had declined by approximately two-thirds between 1570 and 1640 as abundant American Silver flooded European markets, causing what Smith described as Silver sinking “in its real value” relative to commodities like corn

1780-1783 – Indigenous revolt led by Túpac Amaru II erupted in Peru, disrupting Gold and Silver mining operations throughout the Andes for over two years

1782 – The Banco de San Carlos formed in Spain with 300 million Reales in capital, attempting to stabilize Spanish finances and manage American Silver flows

1787-1799 – George III’s “Spade Guinea” Gold coins were minted, named for their spade-shaped shield design and becoming one of the most famous British Gold coins

1789 – French Revolutionary assemblies confiscated church property valued at approximately 2-3 billion Livres on November 2, 1789, with church Silver treasuries and ornamental objects subsequently melted for coinage to finance new government operations and military defense against European coalition forces

1792-1795 – The United States Coinage Act of 1792 defined the U.S. Dollar as 371.25 grains (24.06 grams) of pure Silver, establishing the constitutional monetary standard and authorizing the Philadelphia Mint to produce coins at fixed weights and purities for American commerce. The first official U.S. Gold coins were minted in 1795, specifically the Half-Eagle ($5) and Eagle ($10) denominations

1797 – Napoleon ended the Venetian Republic on May 12, ceasing production of the Gold Ducat after 513 years of continuous minting since 1284

1798 – Napoleon’s Egyptian campaign required substantial specie for military payroll and logistics, with French forces carrying Silver and Gold coins rather than paper currency for operations outside European banking networks, reflecting the necessity of precious metal coinage for overseas military operations

1799 – British Gold Guinea production was halted due to Gold scarcity from the French Revolutionary Wars and widespread hoarding of specie; The first major Gold rush in America begins when a 17-pound Gold nugget is discovered in Cabarrus County, North Carolina

1804-1828 – North Carolina supplies all the domestic Gold coined by the United States

1813 – Exactly 80,000 Gold Guineas were specially minted for the Duke of Wellington’s army in the Pyrenees during the Peninsular War, as Spanish locals would accept only Gold coin for supplies. These were the last Gold Guinea minted

1816 – The Guinea was officially replaced by the Gold Sovereign (weighing 7.98 grams of 22-carat Gold and valued at exactly 20 Shillings) in 1816 as part of the second Great Recoinage Act. This was Britain formally adopting the Gold standard, relegating Silver to subsidiary coinage limited to transactions under 40 Shillings and ending Silver’s role as primary monetary metal in the British Empire; French dentist Auguste Taveau develops Silver-mercury amalgam dental filling material using melted Silver coins and mercury, though practical problems including expansion after setting lead to its abandonment in France

4. Final Thoughts

By 1800, monetary standards crossed political boundaries, price signals transmitted across oceans, financial instruments abstracted from physical metal, and precious metals discoveries in one region could restructure trade relationships in another region across the world – not through military force, but through integrated economies and the basic mechanics of supply, demand, and exchange rate arbitrage. 

The specific mechanisms would continue evolving, but these were already recognizably modern economic structures.

The next article in this series will examine the modern era, as gold rushes in California and Australia, the abandonment of silver standards, and, ultimately, the end of gold convertibility reshape international monetary systems… once again.

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.