Bill Gates is one of the most influential and wealthiest people the world has ever seen. He's a ruthless businessman who built Microsoft into a software empire that would dominate office and home computing around the world.
Forbes named Gates as the world's richest person for 13 years straight.
But all good things must come to an end. On June 27, he is leaving the company he co-founded more than 30 years ago to devote himself to philanthropic work at the Bill & Melinda Gates Foundation.