1841: Sir George Everest discovers Mount Everest.
1856: Surveyor Andrew Waugh declares the first height measurement, naming Everest to be 8840 meters high (29,002 feet).
1865: Peak XV re-named Mt. Everest to honor Sir George Everest. Everest is called Chomolungma in Tibet and Sagarmatha in Nepal.
1921: British attempt an expedition but none reach the summit.
1924: Another attempt and the British team, led by Lt. Col. Norton, reach 8580 meters without oxygen. George Mallory and Andrew Irving are seen somewhere above Camp 1, but they never return.
1934: Maurice Wilson attempts to solo Everest – but he dies.
1950: Tibet falls under Chinese rule, expeditions are prohibited. Nepal only allows expeditions from the south.
1953: First Climb: Tenzing Norgay (Nepal) & Sir Edmund Percival Hillary (New Zealand) 5/29/53 via the South-East Ridge Route.
1955: Height of Everest is adjusted by 26 feet to 8,848 meters.
1960: Chinese team summits via the North Ridge.
1963: James Whittaker becomes the first American to reach the summit.
1973: Sambhu Tamang of Nepal, summits at 16 years old.
1975: Junko Tabei of Japan became the first woman to reach the summit on using the South-East Ridge.
1978: First Ascent without bottled oxygen: Peter Habeler (Austria) and Reinhold Messner (Italy) via the South-East Ridge.
1979: China opens up the north side again.
1980: Solo: Reinhold Messner (Italy) via the North Col to the North Face and the Great Couloir.
1980: First Winter ascent Krzysztof Wielicki (Poland)
1990: Andrej & Marija Stremfelj (Slovenia), 10/7/90, become the first married couple to reach the summit.
1990: First son of a summiter to Summit Everest: Peter Hillary (New Zealand)
1990: First father and son to summit together: Jean Noel Roche and his son Zebulon.
1992: First case of two brothers who reach the Summit together: Alberto and Felix Inurrategui.
1996: Ang Rita Sherpa (born 1947), Summits Everest for the 10th time.
1983,1984,1985,1987,1988,1990,1992,1993,1995,and 1996 all ascents were oxygen-less.
1996: North Side: Fastest Ascent via the standard North Col-north ridge-north face Route: Hans Kammerlander (Italian), 16 hours 45 minutes from base camp. He descended most of the route on skis.
1999: Babu spent over 21 hours on the Summit of Everest.
2000: Speed Record Nepal Side: Babu Chiri Sherpa.
2000: Apa Sherpa Summits for the 11th time.
2000: Oldest woman: Anna Czerwinska (born 7/10/49) climbed Everest from Nepal side.
2001: American Erik Weihenmayer becomes the first blind person to Summit Everest.
2002: Apa Sherpa Summits for the 12th time.
