Columbus was not the brightest of navigators. His math regarding how far away Asia was by the western route was off by more than double the actual distance. In fact, he expected to sight land even earlier than he actually did, let alone that it was the wrong land. But he sailed out of Palos de la Frontera on the evening tide, leading his tiny fleet of three ships, and quite confident in his own abilities as captain and navigator. Whatever you may think of his mathematics, you cannot deny his courage.
In the course of his first voyage, when searching for Japan, he landed instead in the Bahamas a little over two months after leaving Spain, where he introduced the natives to such European specialities as Christianity, firearms and diseases they lacked immunities for.
History Is Made By Stupid People — Arrogant Worms