"first in 1921" . "British expedition to Mount Everest" . "first expedition to Everest" . "1921 Mount Everest expedition" . . "1921 Everest reconnaissance expedition" . "1921 Everest expedition" . . . "1921 reconnaissance" . "1921 expedition" . "1921 Mount Everest reconnaissance expedition" . "1921 British Mount Everest reconnaissance expedition" . . "British Everest reconnaissance expedition of 1921" . . "1921 British reconnaissance expedition" . "Mount Everest Reconnaissance Expedition" . "reconnaissance expedition of 1921" . "1921 British reconnaissance" . "1921 British expedition" . "reconnaissance expedition by the British in 1921" . "British reconnaissance expedition" . "reconnaissance expedition" . "1921 British Reconnaissance Expedition" . . "1921" . "first British expedition of" . "British Reconnaissance Expedition" . "first-ever Mount Everest expedition in 1921" . "1921 British Mount Everest reconnaissance expedition" . . . "British Mount Everest expedition of 1921\u201322" .