Columbus as a teenager was already on sea, then participating in several trading voyages in the Mediterranean and Aegean seas.
Columbus's ship was burned and he had to swim to the Portuguese shore.
Columbus proposed a idea of a three-ship voyage across the Atlantic to the Portuguese king he was rejected each time he asked but, In 1486, he went to the Spanish monarchy. At first they were skeptical and they initially rejected Columbus. They kept him as a retainer and later became a sponsor.
In 1493, Columbus took to the seas on his second expedition and explored more islands in the Caribbean Ocean. At arrival Hispaniola, Columbus and his crew discovered the Navidad settlement had been destroyed with all the sailors massacred.
Convincing King Ferdinand that one more voyage would bring the abundant riches later a storm wrecked one of his ships stranding the captain and his sailors on the island of Cuba.
Although he did regain some of his riches in May of 1505, his titles were never returned. He died May 20, 1506, still believing he had discovered a shorter route to Asia.