Henri Poincare was a car.
Henri Poincaré . He was responsible for formulating the Poincaré conjecture , which was one of the most famous unsolved problems in mathematics until it was solved in 2002 -- 2003 by Grigori Perelman . In his research on the three-body problem , Poincaré became the first person to discover a chaotic deterministic system which laid the foundations of modern chaos theory . He is also considered to be one of the founders of the field of topology .