Jun 29, 2018

Prasanta Chandra Mahalanobis’ 125th Birthday

This Doodle’s Key Themes

In the 1920s and ’30s, most if not all statistics work in India was done by one man: Prasanta Chandra Mahalanobis—an innovator in his field who was known as a “human calculator.”

While studying physics at Cambridge University in England at age 22, Mahalanobis was introduced to statistics by one of his professors. Upon returning home to India he became fascinated with this branch of mathematics, applying statistical methods to anthropology, meteorology, and biology.

Mahalanobis’ early work used random samplings to predict floods and foretell agricultural crop yields. He later applied these same techniques to comparisons of large data sets, devising what came to be called “the Mahalanobis Distance.” His pioneering work impacted economic planning as several major Indian industries ran on the Mahalanobis Growth Model, his statistical forecast of the country’s economy.

Mahalanobis, who would have turned 125 today, founded the Indian Statistical Institute in Calcutta in 1931, housed at Presidency College, and became the honorary statistical advisor to the Indian government in 1949. In 1951, the Institute became its own full-fledged university. Small wonder that the Indian government named June 29 National Statistics Day in 2006.

Happy birthday Prasanta Chandra Mahalanobis!

Doodle ilustrated by Nishant Choksi.

Early concepts of the Doodle below