Who Was Alive

Were Dennis M. Ritchie and Donald Trump alive at the same time?

Yes. Dennis M. Ritchie and Donald Trump were alive at the same time for 65 years, from 1946 to 2011.

Dennis M. Ritchie was 4 when Donald Trump was born.

Donald Trump was 65 when Dennis M. Ritchie died, aged 70.

Dennis M. Ritchie

American computer scientist, co-inventor of the Unix operating system and the C programming language

Born 9 September 1941 · died 12 October 2011, aged 70

Donald Trump

President of the United States

Born 14 June 1946 · living, 80 as of September 2026

  1. Albert Einstein
  2. Adolf Hitler
  3. Ronald Reagan
  4. Dennis M. Ritchie
  5. Donald Trump
  6. Vladimir Putin
  7. Michael Jackson
  8. Barack Obama
Dennis M. Ritchie and Donald Trump 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.