Changes
Jim Whittaker first American on Everest
[[Sir Edmund Hillary]] and Tenzing Norgay are credited with the first successful ascent on May 29,1953.
[[James Whittaker]] was the first [[American]] to reach the summit, on May 1, 1963.
Another notable climber is [[Reinhold Messner]], who made the first solo ascent on Aug. 20,1980, after a prior successful summit two years earlier with his partner Peter Habeler, made without supplemental oxygen.