Special Report

50 Most Powerful Leaders of All Time

Source: AishaAbdel / Wikimedia Commons

16. Muhammad
> Nation/Territory: Present-day Saudi Arabia
> Title: Prophet
> Time in power/Reign: 610-632
> Known for: Founded Islam and put religion on path of rapid expansion.

Source: Sascha Schuermann / Getty Images

17. Charlemagne
> Nation/Territory: Holy Roman Nation/Territory
> Title: Emperor
> Time in power/Reign: 768-814
> Known for: United much of western Europe.

Source: Andreyuu / iStock

18. Genghis Khan
> Nation/Territory: Mongol Nation/Territory
> Title: Khan or leader
> Time in power/Reign: 1206-1227
> Known for: Created empire that stretched from central Asia to eastern Europe.

Source: Hulton Archive / Getty Images

19. Joan of Arc
> Nation/Territory: France
> Title: Military Leader
> Time in power/Reign: 1428-1431
> Known for: Led French to victories over English.

Source: A follower of Gentile Bellini / Wikimedia Commons

20. Mehmed II
> Nation/Territory: Ottoman Nation/Territory
> Title: Sultan
> Time in power/Reign: 1444-1446, 1451-1481
> Known for: Conquered Istanbul and ended Byzantine Empire