Through the foundation, they have spent billions to fight polio and malaria.
In 1994, he bought low-producing gold mine shafts and later turned them profitable, thus enabling him rise to billionaire status.
Mel Gibson is a New York-based film director, producer, and actor and is majorly known for his performances in We Were Soldiers and Braveheart.
Africa is known as the poverty capital of the world.
Bezos founded the behemoth Amazon in 1994 out of his garage in Seattle.
Dangote Cement produces 45.