George Mallory, born June 18, 1886, helped lead the first three expeditions to Mount Everest in the early 1920s, and vanished while attempting to reach the summit. When a journalist asked why he wanted to climb the world's tallest mountain, Mallory famously replied, "Because it's there". This often-quoted remark, and the mystery that still surrounds his death, have contributed to his legendary status among adventurers. Mallory's body was found in 1999.