Records & People

The Man Who Proved Everest Was the World's Tallest Mountain — Without Ever Seeing It

In 1852, a Bengali mathematician working from a survey office in Calcutta calculated the height of a peak he was forbidden from ever approaching —…

By Laxman Rawal · Jul 20, 2026

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In 1852, in a survey office in Calcutta, a 39-year-old Bengali mathematician named Radhanath Sikdar worked through a stack of trigonometric observations and arrived at a number: 29,000 feet. He had just calculated that a barely-named summit, recorded in the…

Travel Himalaya Nepal · News

An inconvenient round number

Sikdar's arithmetic said 29,000 feet exactly. His superior, Surveyor-General Andrew Waugh, reportedly worried that a number that round would look like a rough estimate rather than a precise calculation — so he added two feet before making it official…

Travel Himalaya Nepal · News

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