Spanish Silver Peso (Piece of Eight)

Timeline

1. 1497–1545Castile—Mexico City · Iberian PeninsulaIn 1497, the Castilian currency reform established the real system, designating the eight reales as the standard large silver coin unit. In 1537, the Mexico City mint (Casa de Moneda de México) began mass-producing silver pesos, using silver ore output from New Spain and initially forming a colonial monetary system.
2. 1574–1600Potosí mint · BoliviaIn 1574, the Royal Mint of Potosí was formally established, minting coins with raw material from the nearby Cer Rico silver mine, and its output quickly surpassed that of the Mexico City mint. By the end of the 16th century, the Potosí mint was striking millions of silver pesos annually, shipped throughout Europe via the trade network of the Viceroyalty of Peru.
3. 1601–1610Global trade network · GlobalBetween 1601 and 1610, the silver peso was de facto the world's only hard currency. The Manila galleons shipped tens to over a hundred tons of silver pesos annually to Manila in exchange for Chinese silk and porcelain; meanwhile European powers settled transatlantic and slave trade in silver pesos. The Ming dynasty's Single Whip Reform required taxes to be paid in silver, making the peso an important source of inflow for the East Asian monetary system. The peso's circulation network marks an early realization of global monetary integration.
4. 1732–1820Mexico City and Potosí mints · Spanish AmericaIn 1732, Spain introduced machine-milled technology, replacing hand-struck cut coinage (macuquina); the new round machine-struck silver peso (columnario/busto) was more uniform and harder to counterfeit. In the 1810s and 1820s, after independence movements arose in the colonies, the peso minting system gradually collapsed, and countries such as the United States, Mexico, and Peru successively established their own monetary systems.