A member of the Dinka tribe from Bor attends the final of Sudan's first commercial wrestling league between his tribe and the Mundari from Central Equatoria at a stadium in the southern Sudanese city of Juba on December 18, 2010. The traditional sport has been embraced as a way to increase unity among southern tribes torn apart by cattle raiding conflicts. By Trevor Snapp/AFP/Getty Images.
Nadia Lopez didn't think anybody cared about her middle school. Then Humans of New York told her story to the Internet—and everything changed.