Episode 2 of 2

Announcement of Peak XV Height

When
March 1856
Where
Calcutta
Part of
Great Trigonometrical Survey measures Peak XV (Everest)

Andrew Waugh announced Peak XV as 29,002 feet high in March 1856, confirming it as the world's highest mountain.

Waugh announced his findings in a letter to his deputy in Calcutta in March 1856. The height of 29,002 feet was based on years of calculations from Great Trigonometrical Survey observations, correcting earlier assumptions.

Sources

  1. Mount Everest Wikipedia, revision of 2026-09-27

Machine-drafted from the cited Wikipedia passages and checked by a reviewing model, not by a human editor. Every passage cites the revision it was written from; dates and places follow those passages.