What did Andrew carnige do with his wealth?

Andrew Carnegie used his wealth primarily to promote education and peace. He established libraries, schools, and universities, including the Carnegie Institution for Science and Carnegie Mellon University. Additionally, he created foundations, such as the Carnegie Corporation, to support various philanthropic causes, including cultural and scientific advancements. Carnegie believed in the "Gospel of Wealth," advocating that the rich should use their fortunes for the greater good of society.