So Magellan hopped in his boat, The Victoria with his crew and set sail on the Atlantic Ocean. They sailed south west along the eastern coast of South America and then through the Magellan Strait at the bottom of the continent. As they emerged out of the rough strait and into calmer waters, Magellan named it The Pacific Ocean or "Peaceful Waters."
Magellan proved that if you go west you will eventually end up in India. Sadly Magellan was killed during a tribal battle in the Phillipines, but luckily his crew and his boat continued the voyage and were the first to circumnavigate the globe.