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Saturday, June 25, 2022

## Basic timeline of Henri Poincaré

This post is a basic timeline of mathematician and physicist Henri Poincaré (1854-1912). There are 19 events listed below chronologically.

- 1854: Born in Nancy, France
- 1870: Served in Franco-Prussian War in the Ambulance Corps
- 1873: Enrolls at the École Polytechnique
- 1875-1878: Studies at the École des Mines
- 1878: Becomes inspector for the Corps des Mines
- 1879: Graduates from the University of Paris
- 1879: Begins teaching at the University of Caen
- 1881: Begins teaching at the University of Paris
- 1881: Uses hyperboloid model to describe hyperbolic geometry
- 1881-1882: Establishes qualitative theory of differential equations
- 1883-1897: Teaches at the École Polytechnique
- 1887: Proposes solution to the three-body problem
- 1892: Proposes mathematical theory of light
- 1894: Publishes paper on topology
- 1900: Discovers relation between energy and mass
- 1904: Proposes Poincaré conjecture
- 1905: Discovers relativistic velocity transformations
- 1905: Proposes theory of gravitational waves
- 1912: Died at age 58 in Paris, France

__Sources__

Wikipedia: Henri Poincaré, Poincaré conjecture