Silver: the heart of the Spanish empire in the Americas
Encomenderos (individuals) to corregidores (crown bureacrats)
Black Legend a la peruana: Guamán Poma de Ayala
Potosí, heart of the viceroyalty of Peru
Revolution in mining technology: the patio (amalgamation) process
Double labor structure at Potosí: mita (forced draft) and mingas (voluntary)