532 years ago today, March 15, 1493 (February 28, 1493 in the lunar calendar), Columbus left the West Indies and returned to Spain. The rumor that Columbus was like a compass of China and the development of European shipbuilding and navigation provided conditions for ocean navigation and the opening up of new navigation routes. The first to develop were the Portugal, whose fleet sailed eastward, followed by the Spaniards, who took another sea route and sailed westward. In 1486, the navigator Columbus made a bold proposition to the King of Spain, believing that according to the Earth Circle theory, sailing westward from the Atlantic Ocean could reach China and India. This is closer than China Eastern Airlines. In April 1492, Queen Izabra and her husband King Ferdinand adopted his advice. He was sent to find a route to the east in the name of the royal family, awarded him the rank of "Admiral", and pre-granted him the title of "hereditary governor" of "newly discovered land." At dawn on August 3, Columbus's three sailboats and 87 sailors set out from Port Barros and arrived in the Bahamas Islands 69 days later. He named it "San Salvador"(meaning "Savior"). He thought this was India, so he called the indigenous people "Indians." The flotilla continued south, reaching Cuba and Haiti. There, he found no gold or spices, only some very backward and primitive barbarians and jungles. On March 15, 1493, Columbus left the West Indies and returned to Spain. Later, he sailed westward to America three times, discovering Jamaica, Puerto Rico, Dominica, etc., and arrived in Honduras and Panama in Central America, laying the foundation for the Spanish colonial cause. But until his death, Columbus had been unaware that what he had discovered was the edge of Asia, but did not know that it was the "New World." Columbus discovered portraits of the New World