1953 CE: (NEW ZEALANDER) EDMUND HILLARY, AND (NEPALESE) TENZING NORGAY

Age 33 and 39 respectively – together reach the summit of Mt. Everest.

a.k.a. Sagarmatha (Nepali meaning Head of the Sky)

11:30 A.M., May 29: Nepal–Tibet border: World’s highest mountain at 29,029 feet.

To date, Everest has claimed the lives of over 210 climbers.

(The conquest of Everest coincided with the coronation of Elizabeth II a couple of days later, June 2. By the time Hilary got back to the jump–off base at Katmandu a few days later, to his great surprise, he had already been knighted by Elizabeth, whose advisors apparently proactively fostered an association with the Everest milestone achievement.)