As Yahya Jammeh Finally Steps Down, Here’s A List Of Current Africa’s Longest Serving Leaders.

Paul Biya (Cameroon) — 34 years

Age: 83

In power since: November 1982, when the then-prime minister succeeded a president who resigned.

Current election rules: Majority popular vote for seven-year terms. Last elected in October 2012. No term limits.

_{Additional Info from CNN}