When did Columbus’s expedition to America begin?

Christopher Columbus was originally from the Italian city-state of Genoa. This city at that time was one of the leaders in trade and had a large fleet. It was here that Columbus began his first sea voyages and developed the idea of sailing to India from the west, across the Atlantic. However, no one supported him in Genoa, he was also refused in Portugal and was forced to wait for the opportunity to sail until August 3, 1492. After he made three more voyages both to mainland America and to some islands.