Home / People

1896–1980

Jean Piaget

Swiss psychologist, biologist, logician, philosopher and academic

84years old at death
30,718days lived
80%of the people on this site died younger

Jean Piaget was born on 9 August 1896 and died on 16 September 1980, aged 84 years and 38 days. That is 30,718 days in all.

When do you outlive Jean Piaget?

Your date of birth

Your birthday stays in this browser. It isn't sent anywhere.

Who lived about as long

Everyone here is ranked by days lived. These are the people just either side of Jean Piaget.

Slightly shorter lives

Slightly longer lives

  • Umberto EcoItalian semiotician, essayist, philosopher, literary critic, and novelist · 1932–2016
    84 yrs
  • Emmanuel SwedenborgSwedish 18th century scientist and theologian · 1688–1772
    84 yrs
  • John McCarthyAmerican computer scientist and cognitive scientist · 1927–2011
    84 yrs
  • Douglas MacArthurUnited States Army general in WWI, WWII and Korea · 1880–1964
    84 yrs

Others who died at 84

  • Isaac NewtonEnglish mathematician and physicist · 1643–1727
    84 yrs
  • Thomas EdisonAmerican inventor and businessman · 1847–1931
    84 yrs
  • Salvador DalíSpanish artist · 1904–1989
    84 yrs
  • Benjamin FranklinAmerican polymath and statesman · 1706–1790
    84 yrs
  • John Paul IIPope, cardinal, bishop, priest, author · 1920–2005
    84 yrs
  • Henri MatisseFrench artist · 1869–1954
    84 yrs
  • Umberto EcoItalian semiotician, essayist, philosopher, literary critic, and novelist · 1932–2016
    84 yrs
  • Kurt VonnegutAmerican author · 1922–2007
    84 yrs

Everyone famous who died at 84

Also born on 9 August

Famous people born on 9 August

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.

Read about Jean Piaget on Wikipedia

Keep score on your phone

Outlived for iPhone tracks every famous person you outlive, tells you who is next, and gives you a nudge on the day.

Outlived for iPhoneComing soon