Radhanath Sikdar (Bengali: রাধানাথ শিকদার; 1813 – 17 May 1870) was an Indian mathematician who, among many other things, calculated the height of Peak XV in the Himalaya and showed it to be the tallest mountain above sea level. Peak XV was later named Mount Everest.
Read more about Radhanath Sikdar: Early Life, Great Trigonometric Survey, Other, Recognition