When the 2013 government shutdown threatened the closing down of a national program giving medical attention and meals to children, John D. Arnold donated $10 million of his own money to keep it afloat.
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Boxer Wladimir Klitshko auctioned his Olympic gold medal to raise money for underprivileged Ukrainian children. He raised $1,000,000. The buyer immediately returned the medal to Wladimir as he wanted it to remain in the Klitschko family.
4
J.K. Rowling lost her billionaire status because she donated so much of her money to charity.
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