Mount Everest, or Mount Chomolungma, is the world's highest mountain above the mean sea level at 8,848 metres (29,029 ft). It is located in the Himalayas on the Nepal (Sagarmatha Zone)-China (Tibet) border.
In 1856, the Great Trigonometric Survey of British India established the first published height of Everest, then known as Peak XV, at 29,002 ft (8,840 m). In 1865, Everest...