In this video, we chart the rise and fall of Alexander the Great's extraordinary empire, which stretched from Macedonia in modern day Greece to the borders of the Indian subcontinent. Alexander's empire would not outlive him, but his achievements would make him one of the most famous generals in ...

How big was the Mongol Empire? In this video, we've mapped out a timeline of the Mongol conquests, from Genghis Khan to Kublai Khan and beyond.

You'll find out how the Mongol Empire grew from a collection of nomadic tribes on the Central Asian steppe, to the largest land empire in history. Char...