Started from nothing
Carnegie started from a little house in Scotland with nothing and took risks that everyone else thought wouldn't pay off but eventually made him one of the richest men ever.
Bill Gates has donated 99% of his 83.6 billion net worth, that's 84 billion dollars going toward his charity that is committed to helping children in Africa.
Microsoft was build by Bill Gates and build the software industry as it was the first major software program, Windows, it was started on April 4, 1795.
Built his company from nothing
Bill Gates build Microsoft in 1975 in an era where the only computers were the size of rooms. But with Microsoft jumping on to the national stage Personal Computers (P.C.) were soon to be found in almost every house in America