Spanx Mogul Sara Blakely Becomes First Female Billionaire To Join Gates-Buffett Giving Pledge

Sara Blakely made history in 2012, becoming the youngest self-made woman to join Forbes
Sara Blakely made history in 2012, becoming the youngest self-made woman to join Forbes' Billionaire's List. Now, she scores another first: she's joined Bill Gates and Warren Buffett's Giving Pledge as the first female billionaire to pledge half her wealth to charity.

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