Steppe nomads plagued the ancient world with their cavalries, but nobody perfected this form of warfare like the Mongols. A horse archer had such a deep kinesthetic relationship with his steed he could feel when all four hooves were off the ground, allowing for a perfect shot. Chroniclers say they could hit the wings off birds from 50 yards and fell an enemy from 500.

Learn why the bow and the horse were the foundations of Mongolian military power.