View full lesson: http://ed.ted.com/lessons/history-vs-genghis-khan-alex-gendler

He was one of the most fearsome warlords who ever lived, waging an unstoppable conquest across the Eurasian continent. But was Genghis Khan a vicious barbarian or a unifier who paved the way for the modern world? Alex Gendler puts this controversial figure on trial in History vs Genghis Khan.

Lesson by Alex Gendler, animation by Brett Underhill.