Do you know Africa's big men?: The continent's long-serving leaders

Who are the nine longest-serving leaders in Africa and how long have they been in power?

Gambia, H.E. Yahya Jammeh for 21 years, ruled since 1994, He is 50 years old now.

see more >> http://interactive.aljazeera.com/aje/2016/african-presidents/africanleaders.mp4