Waldemar Niclevicz is the first Brazilian to climb Everest. First Canadian woman Sharon Wood. Peter Hillary May 10, 1990. Jean Noel Roche and his son Zebulon. Surveyor Andrew Waugh completes first height measurement, declaring Everest to be 8840 meters high.
None reach the summit.
Lt. Col. Norton reaches 8580 meters without oxygen. George Mallory and Andrew Irving are seen somewhere above Camp 1. They never return. Maurice Wilson attempts to solo Everest - his body is later found at 6400 meters. Nepal allows expeditions from the south.