On Tuesday, Nike made former NFL quarterback Colin Kaepernick the face of its latest "Just Do It" campaign, reigniting a debate about social injustice. In 2013, second-year quarterback Kaepernick stood on one of the world's biggest sports stages and led his team back from a 28-6 deficit to nearly win Super Bowl XLVII, proving himself to be one of the NFL's most promising young quarterbacks. Five years later, Kaepernick is unemployed and hasn't played an NFL game since January 1, 2017. His influence on American society has far outweighed his on-field performance since he started kneeling as a way to protest police brutality and systemic racism. The silent act started a movement, leading other players to join him, and stirring discussion about patriotism and American values. Take the quiz to see how much you know about the series of events that led up to today.