Charles De Gaulle 483 Posted June 1 I think we need a thread for Paul Biya. At 91 years old he is the world's oldest leader and the longest serving with a five decade reign. This guy has future immortal written all over him if you ask me. Given he is the longest reigning non monarch in the world, I think that means he deserves more than the odd mention on this forum. 11 Share this post Link to post Share on other sites