Pope Benedict XVI announces his resignation as head of state of the Vatican City State, effective on the 28th.
2013 ATP Challenger Tour | 2013 | politics | 2013 ATP World Tour | 2013 Southeast Asian Games | 2013 ITF Women's Circuit | Speaker (politics) | 2013 WTA Tour | 2013 Island Games | Politics of Germany | Left-wing politics | Eurovision Song Contest 2013 | 2013 Mediterranean Games | Politics | Big East Conference (1979–2013) | 2013 World Aquatics Championships | 2013–14 figure skating season | Miss Universe 2013 | Malaysian general election, 2013 | Australian federal election, 2013 | Politics of the United States | 2013–14 NCAA Division I men's basketball season | Whip (politics) | Right-wing politics | left-wing politics | Gun politics in the United States | British Columbia general election, 2013 | 2013 NCAA Division I FBS football season | Politics of France | Independent (politics) |