In 1901, banker John Pierpont Morgan (1837-1913) purchased Carnegie Steel for some $480 million, making Andrew Carnegie one of the world's richest men. That same year, Morgan merged Carnegie Steel with a group of other steel businesses to form U.S. Steel, the world's first billion-dollar corporation.
In his final years, Carnegie's net worth was US$475 million, but by the time of his death in 1919 he had donated most of his wealth to charities and other philanthropic endeavors and had only US$30 million left to his personal fortune.
