Túpac Inca Yupanqui

Tenth Sapa Inca and the great extender of empire. Already an experienced general before his accession, he completed the conquest of the Chimú kingdom on the northern Peruvian coast and pushed the imperial frontier south through Bolivia into present-day Argentina and Chile. He is also said in some accounts to have led a Pacific expedition that reached islands far to the west — possibly Polynesia, though the evidence is contested.