Andrew Carnegie (November 25, 1835 – August 11, 1919) was a Scottish-American businessman. He ran U.S. Steel, a major steel making corporation. When he retired, he was one of the richest men in America. He used his large amounts of money to fund charities. These charities gave money to universities. He had a hall built for himself (called Carnegie Hall), and he also built public libraries (called Carnegie Libraries).