One of the most well known entrepreneurs, Bill Gates is the current chairman of Microsoft and the former Chief Executive Officer. He was considered to be the richest man in the world for many years.

It was on this day, June 27th, 2008 that Bill Gates retired from day-to-day activities with Microsoft so that he could focus on his foundation.

The Bill & Melissa Gates Foundation is the largest transparently operated private foundation in the world. The three trustees—Bill Gates, Melinda Gates, and Warren Buffett—aim to enhance healthcare and reduce poverty globally and to strengthen education and access to technology within the United States.