Beginning in December 2010, the suicide of a Tunisian street vender ignited protests and uprisings that spread throughout the Arab world. James L. Gelvin, Professor of History at UCLA and author of The Arab Uprisings: What Everyone Needs to Know (Oxford University Press, 2012), looks back at the first year of those protests and uprisings, exploring their causes, their trajectories, and the lessons we might learn from them.