The Spanish conquest of the Inca Empire was one of the more important operations in the Spanish colonialism of the U.S. After times of introductory research and military conflicts, 180 Spanish fighters under conquistador Francisco Pizarro, his colleagues, and their local allies seized the Sapa Inca Atahualpa in the 1532 Conflict of Cajamarca. It was the beginning action in a long campaign that took decades of fighting but stopped in Spanish victory in 1572 and settlement of the area as the Viceroyalty of Peru.
On a geologic map, if the contacts between sedimentary rock units form a bull’s-eye pattern of concentric circles, with the oldest unit in the center, the underlying structure is a syncline.
