Eight college dropouts who became successful businessmen
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John D. Rockefeller
John Davison Rockefeller Sr. was an American oil industry business magnate. He is widely considered as the wealthiest American of all time. By the time he was sixteen, Rockefeller decided it was time to quit school and begin a career. Rockefeller made his mark in the oil industry, starting Standard Oil and ultimately creating a monopoly on the entire industry.