Christopher Columbus embarked on four voyages across the Atlantic Ocean between 1492 and 1504. He was initially sponsored by the Spanish monarchs Ferdinand and Isabella and set out to find a western route to Asia. On his first voyage in 1492, he landed in the Bahamas and believed he had reached Asia, naming the indigenous peoples "Indians." His voyages led to the European colonization of the Americas and the beginning of widespread contact between the Eastern and Western hemispheres.