Answer:
Christopher Columbus was an Italian navigator, he was looking for a shorter route to get to Asia and had the idea of navigate the now called "Atlantic Ocean" to arrive faster in India, instead of it, he arrived to other continent, America, so he discovered America.
Step-by-step explanation:
In XV and XVI centuries, people believed that the world was only integrated by Europe, Asia and Africa, so the idea of circumnavigate the world from Europe to Asia into the Atlantic Ocean was reliable.