1941–2011
Dennis M. Ritchie
American computer scientist, co-inventor of the Unix operating system and the C programming language
70years old at death
25,600days lived
50%of the people on this site died younger
Dennis M. Ritchie was born on 9 September 1941 and died on 12 October 2011, aged 70 years and 33 days. That is 25,600 days in all.
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Who lived about as long
Everyone here is ranked by days lived. These are the people just either side of Dennis M. Ritchie.
Slightly shorter lives
- Hermann WeylGerman mathematician · 1885–195570 yrs
- Yves MontandFrench-Italian actor and singer · 1921–199170 yrs
- Sixtus IVPope of the Catholic Church from 1471 to 1484 · 1414–148470 yrs
- GalbaSixth Roman Emperor · 3 BC–AD 6970 yrs
Slightly longer lives
- Karl MayGerman writer · 1842–191270 yrs
- Thomas Henry HuxleyBritish biologist and comparative anatomist · 1825–189570 yrs
- Nina SimoneAmerican singer, songwriter and pianist and civil rights activist · 1933–200370 yrs
- Charles-Augustin de CoulombFrench physicist · 1736–180670 yrs
Others who died at 70
- Hans Christian AndersenDanish writer and poet · 1805–187570 yrs
- Nicolaus CopernicusPolish mathematician and astronomer · 1473–154370 yrs
- Gottfried Wilhelm LeibnizGerman mathematician and philosopher · 1646–171670 yrs
- Muḥammad ibn Musa al-Khwarizmi9th-century Persian mathematician and astronomer · c. AD 780–850c. 70 yrs
- Stanley KubrickAmerican filmmaker and photographer · 1928–199970 yrs
- Cyrus the GreatFounder of the Achaemenid Empire · c. 600–530 BCc. 70 yrs
- Denis DiderotFrench Enlightenment philosopher writer and encyclopædist · 1713–178470 yrs
- Satyajit RayIndian filmmaker and writer · 1921–199270 yrs
Everyone famous who died at 70
Also born on 9 September
- Leo TolstoyRussian author · 1828–191082 yrs
- Al-Biruni11th-century Khwarazmian scholar and polymath · 973–104875 yrs
- Armand-Jean du Plessis, duc de RichelieuFrench clergyman, cardinal, noble and statesman · 1585–164257 yrs
- Jahangir IThe fourth Mughal Emperor from 1605 to 1627 · 1569–162758 yrs
- Cesare PaveseItalian writer, literary critic, and translator · 1908–195041 yrs
- Luigi GalvaniItalian physician, physicist, and philosopher · 1737–179861 yrs
Famous people born on 9 September
Where this comes from
Dates are from Wikidata (free to use under CC0), last updated 22 October 2026. Dates in old records are sometimes disputed.
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