Of couse you mean
Mount Everest because it is only known in China as Mount Qomolangma.
Both China and Nepal sealed off their sides of the mountain and the ascent organisers kept the exact plans a secret.
Security was very tight for the event, with other climbers being banned from Mount Everest.
Celebrating the 50th Anniversary of the First Ascent of Mount Everest (1953-2003)
1924:
"Because It Is There"
On the morning of June 8, British climbers George Mallory (responsible for the famous quip) and Sandy Irvine set out from their camp at 26,700 feet (8,138 meters) on the Northeast Ridge. They are last seen hours later, "moving expeditiously" toward the summit.
1953:
First on Top
Edmund Hillary and Tenzing Norgay become the first men to stand on the summit. They ascend via the South Col route, today the most popular path to the summit.
http://news.nationalgeographic.com//news/2003/04/0401_030401_everesttimeline.html