Edmund Hillary was the New Zealand climber who reached Mount Everest’s summit with Tenzing Norgay in 1953.
Hillary and Tenzing reached the summit on 29 May 1953 during a British expedition led by John Hunt. They climbed via the South Col route, and their success was confirmed shortly before Queen Elizabeth II’s coronation. The expedition’s achievement became one of the most celebrated events in mountaineering history.
The pair worked as a team, so neither climber is regarded as having reached the summit alone or before the other. Hillary was the New Zealander, while Tenzing was a Nepalese-Indian Sherpa mountaineer. The distinction in the question identifies Hillary without denying Tenzing’s equal role.
After Everest, Hillary devoted much of his life to supporting the Sherpa people and development projects in Nepal. He also reached the South Pole as part of the Commonwealth Trans-Antarctic Expedition in 1958.