If Riccardo Cassin was alive he would turn 105 today, January 2, 2014. The legendary climber died in 2009, at 100. He started climbing in 1930 with the Ragni di Lecco, Spiders of Lecco, in the Dolomites. He is responsible for some of the greatest lines in the Alps, including the North East Face of the Piz Badile, the Cassin Route, and the Walker Spur. He led the first ascent of Gasherbrum IV in 1957 and the first ascent of the Cassin Ridge on Denali in 1961. For more on Cassin see here.