Henri Poincaré
French mathematician, physicist and engineer (1854–1912) / From Wikipedia, the free encyclopedia
Jules Henri Poincaré (29 April 1854 – 17 July 1912) was a French mathematician and scientist. He was described as a "monster of mathematics " when still a child. Many people think he was the last person to understand all branches of mathematics before the subject became too big for anyone to do this.