Who Was Alive

Were Karl Marx and Henri Poincaré alive at the same time?

Yes. Karl Marx and Henri Poincaré were alive at the same time for 28 years, from 1854 to 1883.

Karl Marx was 35 when Henri Poincaré was born.

Henri Poincaré was 28 when Karl Marx died, aged 64.

Karl Marx

German-born philosopher

Born 5 May 1818 · died 14 March 1883, aged 64

Henri Poincaré

French mathematician, physicist and engineer

Born 29 April 1854 · died 17 July 1912, aged 58

  1. Napoleon
  2. Abraham Lincoln
  3. Karl Marx
  4. Henri Poincaré
  5. Mahatma Gandhi
  6. Vladimir Lenin
  7. Albert Einstein
  8. Adolf Hitler
  9. Ronald Reagan
Karl Marx and Henri Poincaré in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.