Analyse @Discovery's tweets
@Discovery
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Did two explorers reach the summit of Mt. Everest decades before Sir Edmund Hillary and Tenzing Norgay?
#EverestsGreatestMystery will trace the 1924 trek of George Mallory and Andrew Irvine tonight at 9p. https://t.co/0vfMbICODx
#EverestsGreatestMystery will trace the 1924 trek of George Mallory and Andrew Irvine tonight at 9p. https://t.co/0vfMbICODx