Colmbus believed the world was round, not flat. For years, he tried convincing rulers from differnent nations. Finally, in 1492, Columbus set sail from Spain. He spent several months sailing around the Bahamas, Cuba, and Hispaniola. In Cuba, they found Native Americas smoking ciagrs, which is how we came in contact with tobacco. In January 1493, Columbus headed back to Spain. He was received in great honors. A little while later, he led a fleet of 17 ships on another search for Asia.