Conversation so far:
What year(s) was Mallory in Asia?
Mallory participated in the initial 1921 British Reconnaissance Expedition.
Who did he climb with in 1921?
organised and financed by the Mount Everest Committee, that explored routes up to the North Col of Mount Everest.

Question: Were they successful in the climb?
Self-contained rewrite: Were George Mallory and Mount Everest Committee successful in the climb of North Col of Mount Everest?