28. Gabby Douglas Won Big at the 2012 Summer Olympics

Dates: 07/27/12-08/12/12

The 16-year-old gymnast stunned the world with her gorgeous performances at the 2012 Olympics and became the first African-American gymnast in Olympic history to become the individual all-around champion, and the first American gymnast to win gold in both the individual all-around and team competitions at the same Olympics.