John D. Rockefeller Sr. was the world’s first billionaire, thanks to his monopoly on the oil business. He owned 90% of the world’s oil refineries and a third of the world’s oil wells. His fortune would be worth around $400 billion today. The world’s first billionaire was oil tycoon John David Rockefeller Sr. He achieved […]
Martha Stewart became a billionaire in 2005 while in prison for obstruction of justice, as shares in her company soared over 90%. She transferred her shares to her daughter before conviction, but retained ownership. After her release, the value of her company’s stock dropped 40%, and she lost her billionaire status. Prior to her media […]
