Tenzing Norgay and Edmund Hillary's monumental and historical ascent of Mt. Everest in 1953 - an event that stunned the world and defined a nation.Tenzing Norgay and Edmund Hillary's monumental and historical ascent of Mt. Everest in 1953 - an event that stunned the world and defined a nation.Tenzing Norgay and Edmund Hillary's monumental and historical ascent of Mt. Everest in 1953 - an event that stunned the world and defined a nation.