The Great Trigonometrical Survey of India 1870

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The Great Trigonometrical Survey of India 1870

• involved several thousand Indians
• named the Great Trigonometrical Survey in 1819
• covered more than 1,600 miles
• it took 40 years for it to reach the Himalayas.
• It led to the most complex mathematical equations
  known to pre-computer age, and led to the
  'discovery' of the world's highest mountain.

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The Great Theodolite
weighed 1100lbs (499kgs) and required 12 strong
men to carry
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The first Everest mapJanuary 1858
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Sir George Everest
Chomolungma (Tibetan) or Devadhunka (Nepali). 
After much debate, the Royal Geographical Society
in London officially adopted the name Mount
Everest in 1865.
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Schools such as this prompted climbers like
Edmund Hillary to establish the Himalyan Trust to
support education and health for the Sherpa
people
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• 1936

Early oxygen equipment
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May 30, 1953
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Tenzing Norgay on summit