Bill Gates, along with his friend Paul Allen, started Microsoft in 1976. It quickly became one of world's most powerful companies, making Gates a billionaire. Since then, Bill and his wife, Melinda, have become well-known philanthropists, helping people around the world by donating billions of dollars and bringing attention to various causes. What drove Bill Gates to create such an empire? How have their lives changed now that they both work for the Foundation? The exciting biographies in the Front-Page Lives series take an in-depth look at some of the world's most fascinating people.