Most people in Columbus's days thought that the earth was flat and they did not believe that beyond the Atlantic Ocean lay India. In 1492 the King and the Queen of Spain gave him money to go to India. He decided to sail west as he was sure that our planet was round. There were 3 caravels: the Santa Maria, the Nina and the Pinta. After sailing 4000 miles he reached some land.
The crew saw something like a white cliff and cried out: "Tierra! Tierra!". Columbus thought 'that it must be India but it was not.