On May 1, 1963 Jim Whitaker became the first American, & 10th person, to reach the summit of this mountain
The 
Whittaker legacy  Whittaker summits Mount Everest on May 1, 1963, at 1 p.m. .... 
Mountaineer Jim Whittaker reached the summit of Mount Everest in 1963 ... 80-
year-old Japanese man becomes oldest to climb Mount Everest.