The document summarizes the Battle of Cajamarca which occurred on November 16, 1532. In this battle, 106 Spanish infantry and 62 cavalry defeated 2,000 Incans, resulting in the arrest of the Incan ruler Atahualpa. Atahualpa was later executed on July 25, 1533 at Cajamarca. The document also mentions Chinese explorers Polo, Battuta and Ma Huan, as well as China's civil service examination system and Ming Dynasty maritime expeditions between 1405-1433.