Did the Catholic church just choose its first African American pope? That question set Black social media on fire in the hours following the election of Robert Prevost, the first American to become pontiff in the church’s 2,000-year history. The facts about Leo, the former Peru-based cardinal who won the papacy on Thursday, seem to say so — including documents suggesting he is descended from people of color with roots in a well-known Creole neighborhood in New Orleans.