Conversation so far:
What year(s) was Mallory in Asia?
1921 and 1922
Who did Mallory climb with in 1921?
Guy Bullock, and E. O. Wheeler
Was the 1921 British Reconnaissance Expedition successful in the climb?
Under Mallory's leadership, and with the assistance of around a dozen Sherpas, the group climbed several lower peaks near Everest.

Question: What else can you tell me about this climb
Self-contained rewrite: What else can you tell me about the 1921 British Reconnaissance Expedition other than if it was successful