Columbus, de Gama, and Zheng He! 15th Century Mariners. Crash Course: World History #21 (Patreon)

Columbus, de Gama, and Zheng He! 15th Century Mariners. Crash Course: World History #21

In which John Green teaches you about the beginning of the so-called Age of Discovery. You've probably heard of Christopher Columbus, who "discovered" Americ...