Mar 7, 2013 12:26 AP Interactive: Pope Benedict XVI's life AP Interactive: Pope Benedict XVI's life The Associated Press March 07, 2013 Comments FILE - The Feb. 28, 1982 file photo shows then Cardinal Joseph Ratzinger, left, testing the sharpness of the sabre of mountaineer Andreas Stadler, right, in Munich. Joseph Ratzinger, who later became Pope Benedict XVI, announced Monday, Feb. 11, 2013 that he will resign on Feb. 28. The 85-year-old pope announced his decision in Latin during a meeting of Vatican cardinals. (AP Photo/dpa, file)POPE-BENEDICT: An interactive with a timeline of Pope Benedict XVI's life and career with another panel on oldest serving popes in the Catholic's church's history. Pope Benedict said Monday, Feb.11, 2013, that he lacks the strength to fulfill his duties and on Feb. 28 will become the first pontiff in 600 years to resign. The announcement sets the stage for a conclave in March to elect a new leader for world's 1 billion Catholics.