Madam C. J. Walker (born Sarah Breedlove; December 23, 1867 – May 25, 1919) was an American entrepreneur, philanthropist, and political and social activist. Walker is recorded as the first female self-made millionaire in America in the Guinness Book of World Records. Multiple sources mention that although other women (like Mary Ellen Pleasant) might have been the first, their wealth is not as well-documented. Wikipedia
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