John D. Rockefeller — what did John D. Rockefeller do at each age?

ジョン・D・ロックフェラー | Business Leader | Born 1839

Timeline

• Age 31 (1870): Founded Standard Oil
• Age 40 (1879): Controlled 90% of US oil
• Age 58 (1916): Became world's first billionaire
• Age 74 (1913): Founded Rockefeller Foundation

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