'''Reinhold Messner''', born on September 17 1944, is an [[Italy|Italian]] mountain climber credited with several feats including being the only climber to have climbed all 14 of the world's highest mountains, and the first mountaineer (along with his climbing partner Peter Habeler) to summit [[Mount Everest]] without the use of supplemental oxygen. | '''Reinhold Messner''', born on September 17 1944, is an [[Italy|Italian]] mountain climber credited with several feats including being the only climber to have climbed all 14 of the world's highest mountains, and the first mountaineer (along with his climbing partner Peter Habeler) to summit [[Mount Everest]] without the use of supplemental oxygen. |