City of Potosi Bolivia
In the pre-Hispanic period, Potosí was only a small hamlet perched at an altitude of 4,000 m, in the icy solitude of the Andes. It owes its prosperity to the discovery, between 1542 and 1545, of the New World's biggest silver lodes in the Cerro de Potosí, the mountain south of the city which overlooks it. As a result, Potosí is directly and tangibly associated with an event of outstanding universal significance: the economic change brought about in the 16th century by the flood of Spanish currency resulting from the massive import of precious metals from the New World into Seville.
Continent: South America
Country: Bolivia
Category: Cultural
Criterion: (II)(IV) (VI)
Date of Inscription: 1987
The Imperial City' of Potosi
The 'Imperial City' of Potosí, which it became following the visit of Francisco de Toledo in 1572, exerted lasting influence on the development of architecture and monumental arts in the central region of the Andes by spreading the forms of a Baroque style incorporating Bolivian influence. Growth was extremely rapid: in the new town, where building began under the terms of the Law of the Indies in 1572, there were by the 17th century 160,000 colonists, as well as 13,500 Bolivians who were forced to labour in the mines. Following a period of disorganized exploitation of the native silver lodes, the Cerro de Potosí reached full production capacity after 1580, when a Peruvian-developed mining technique, known as patio, was implemented. In the 16th century, this area was regarded as the world's largest industrial complex in which the extraction of silver ore relied on a series of hydraulic mills.
Potosí is the one example par excellence of a major silver mine in modern times. The city and the region conserve spectacular traces of this activity: the industrial infrastructure comprised 22 lagunas or reservoirs, from which a forced flow of water produce the hydraulic power to activate the 140 ingenios or mills to grind silver ore. The ground ore was then amalgamated with mercury in refractory earthen kilns called huayras or guayras. It was then moulded into bars and stamped with the mark of the Royal Mint. From the mine to the Royal Mint, the whole production chain is conserved, along with dams, aqueducts, milling centres and kilns. Production continued until the 18th century, slowing down only after the country's independence in 1825.
 |
| City of Potosi Bolivia |
