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A quick bit of Black history for you: while a French hairdresser first invented the hot comb in the late 1800s, Black women soon began utilizing it, and entrepreneur and cosmetology school founder Annie Malone was the first to patent it in the United States. A woman who sold Malone’s beauty products and later created her own, Madam C. J. Walker, would become the world’s first female self-made millionaire and one of the most recognizable names in the Black beauty world.