29: Geopolitics and the Mongol Empire by Morris Rossabi

Political and economic concerns were as critical as environmental and geographic factors in forging the unity of the Mongol Empire. Read by Leighton Pugh.

Image: Genghis Khan in combat. Miniature from Jami' al-tawarikh, ca 1430. Found in the collection of Bibliothèque Nationale de France. Artist. Credit: Fine Art Images/Heritage Images/Getty Images