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Andrew Carnegie was Born November 25, 1835, -
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Carnegie founds the Keystone Bridge Company.
Carnegie and several associates reorganize the Piper and Schiffler Company into the Keystone Bridge Company. They envision building bridges with iron, rather than wood, to make the bridges more durable. Tom Scott loans Carnegie half of the $80,000 he needs for his investment. -
Carnegie establishes the Keystone Telegraph Company with several associates from the railroad -
Carnegie allows J.P. Morgan to buy him out for $480 million, a move that allows Morgan to create US Steel and makes Carnegie the richest man in the world. -
Carnegie establishes the Carnegie Corporation with his remaining money, about $125,000,000. He intends that the corporation will aid colleges, universities, technical schools, and scientific research -