Many people can agree that Serena Williams is one of the best tennis players in the world, with 23 Grand Slam singles titles. That number is insane, considering Roger Federer has 20 Grand Slams. The...

On Aug. 20, 2009, it was just another day for the 7 billion people who inhabit this Earth. But for a 15-year-old from Columbus, Ohio, it was a day that would never be forgotten. The summer was drawing...