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Jean Piaget
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Jean Piaget

Swiss psychologist, biologist, logician, philosopher and academic (1896–1980)

Jean William Fritz Piaget was a Swiss psychologist known for his work on child development. Piaget's theory of cognitive development and epistemological view are together called genetic epistemology.

Jean Piaget was born on Sunday, 09. August 1896.
That was day 222 of the year 1896.

Past away on Dienstag September 16, 1980

Age when dead:
84 Jahre 1 Monate 7 Tage

Next birthday would be:
Sunday August 9, 1981

Jean Piaget is already dead since:
45 Jahre 7 Monate 8 Tage

Jean Piaget was alive for 30718 days.
Jean Piaget is already dead for 16656 days.
Difference: 14062 days (38,50 years).

Jean Piaget has the same birthday like
Kevin McKidd, Melanie Griffith and Roy Hodgson

The death date of Jean Piaget is the birthday of
Max Minghella, Molly Shannon and Nick Jonas

Birthday Fun Facts

Things that matter

Jean Piaget 84

Jean Piaget

Swiss psychologist, biologist, logician, philosopher and academic (1896–1980)

Born: August 9, 1896

Died: September 16, 1980

Would be 130 years


(47,374 days old today)

Maggie Grace 42

Maggie Grace

American actress

Born: September 21, 1983

🎂 Turns 43 years


(15,556 days old today)

Sherlock Holmes 172

Sherlock Holmes

fictional character (consulting detective) created by Sir Arthur Conan Doyle

Born: January 6, 1854

🎂 Turns 173 years


(62,930 days old today)



  • The day 09 of month August 1896 was the 70th day of Summer (meteorological). The day 09 of month August 1896 was the 50th day of Summer (astronomical).
  • Age 84 The number 84 represents the element Polonium in the Periodic table of elements.
    Polonium is a post-transition metal with various industrial and technological applications.
  • Since you visited this page, people have been born. In total there are people born today. They all celebrate the same birthday as you.

Who has the same birthday as Jean Piaget?

Famous people and celebrities

Audrey Tautou 49

Audrey Tautou

French actress (born 1976)

Born: August 9, 1976

🎂 Turns 50 years
Kevin McKidd 52

Kevin McKidd

Scottish actor

Born: August 9, 1973

🎂 Turns 53 years
Melanie Griffith 68

Melanie Griffith

American actress

Born: August 9, 1957

🎂 Turns 69 years
Roy Hodgson 78

Roy Hodgson

English football manager

Born: August 9, 1947

🎂 Turns 79 years
Tove Jansson 86

Tove Jansson

Finnish children's writer and illustrator (1914–2001)

Born: August 9, 1914

Died: June 27, 2001

Would be 112 years

Same vintage - 1896

These people were born in the same year

Mao Dun 84

Mao Dun

Chinese writer (1896-1981)

Born: July 4, 1896

Died: March 27, 1981

Would be 130 years
Sandro Pertini 93

Sandro Pertini

former President of the Italian Republic, President of Italy from 1978 to 1985

Born: September 25, 1896

Died: February 24, 1990

Would be 130 years

Did you know? Jean Piaget is ...

  • » 555 days older than Totò (Born: 15.02.1898)
  • » 6666 days younger than Gustav Stresemann (Born: 10.05.1878)

Lost Generation

Period: 1883 ‐ 1900

At 84 years, Jean Piaget belongs to the "Lost Generation". Well-known figures of this generation include Percy Spencer, Georges Lemaître und Hayato Ikeda.

Astrology

Zodiac

♌ Leo

(July 23, 1896 - August 23, 1896)

Zodiac sign

Monkey

(July 23, 1896 - August 23, 1896)

Life Number

5

(Adventurous, avoids responsibility, sometimes unreliable)

Birthstone

Peridot

(Healing, harmony, good fortune)

Age in absolute numbers

Since Jean Piaget was born...

2.654.031.600 Seconds
44.233.860 Minutes
737.231 Hours
30.717 Days
4.388 Weeks
1556 Months
84 Years
8.41 Decades
0.84 Centuries

On January 10, 2028 would be Jean Piaget exactly 48000 days old.
On October 6, 2030 would be Jean Piaget exactly 7000 weeks old.

By the way: Since you are here you are getting seconds older 😉

Milestones

Successes that speak for themselves

With 84 years alive you reached these milestones:

Sleeping

10.239 days

A human spends about one third of their life sleeping. That’s an average of around 10.239 hours per day. At your age of 84 years, that equals approximately 10.239 days (28,03 years).

Eat & Drink

1.280 days

The average person spends about 1 hour a day eating and drinking. At 84 years, you have therefore spent approximately 1.280 days eating. (3,50 years).

Toilet visits

640 days

The average person spends about 30 minutes on the toilet every day. That's a total of 640 days (1,75 years).

Wait

1.067 days

The average person spends about 30 minutes on the toilet every day. That's a total of 1.067 days (2,92 years).

Laugh

128 days

We laugh for about six minutes a day. That's actually far too less. That's a total of 128 days (0,35 years).

Brush teeth

85 days

We laugh for about six minutes a day. That's actually far too less. That's a total of 85 days (0,23 years).

Work

8.319 days

We laugh for about six minutes a day. That's actually far too less. That's a total of 8.319 days (22,78 years).




Name Zahl Beschreibung
Breaths 796.209.480 Approximately 18 Breaths per minute
Heartbeats 3.317.539.500 Approximately 50-100 heartbeats per minute, depending on your lifestyle. We'll take the average at 75.
Blink 663.507.900 A human blinks roughly 15 times per minute.
Cough 460.769 A human has an average of 15 coughs per day.
Colds 168 A person gets about 2 colds per year.
Sweat produced 4.608 A person produces approximately 0.5–1.5 liters of sweat per day, depending on lifestyle. We'll take the average at 1 liter per day.
Fart gases produced (in Liters) 30.718 A person farts approximately 12 times a day, producing almost 0.8 liters of gas.
Flies swatted 589 We swat 7 flies per year.
Mosquitoes killed 1.514 We kill approximately 18 mosquitoes per year.
Red blood cells formed 614.359.166.666.667 A person produces approximately 20 billion red blood cells per day.
Hair grown (in mm) 10.137 Our hair grows approximately 0.33mm per day.
Fingernails grown (in mm) 3.511 Fingernails grow approximately 0.8mm per week.
Cookies eaten 36.554 We eat approximately 35,000 cookies in our lifetime.
Bouts of vomiting 336 A person vomits approximately four times a year, depending on lifestyle.

Information is based on statistical average values of a person.

Travelled distances

Always on the move

According to statistical averages, you have walked 110.585 kilometers in your life...


... that corresponds to 2,76 orbits of the Earth...


... 10,13 moon orbits.


... and 5,18 Mars orbit on foot.



110.585 kilometers means:

4.205 years with a snail 🐌 (at 3m/h).
823 days on a donkey 🫏 (at 5,6km/h).
576 days on a Skateboard 🛹 (at 8km/h).
154 days travel with a subway train 🚇 (at 30km/h).
6 days on a plane ✈️ (at 800km/h)
3,95 hours on a Spaceshuttle 🚀 (at 28.000km/h)
109,06 minutes with spaceship Voyager 1 🚀 (at 60840km/h)
9,62 minutes with Parker Space Probe - the fastest object made by humans 🚀 (at 690000km/h)

and

3,73 days sonic speed (at 1234,8 km/h)
0,37 seconds light speed (at 1,08 Mrd km/h)

Astronomy

Our Solar System

During the lifetime of Jean Piaget ...

... the Moon has orbited Earth 1.124 times.
... Mercury has orbited Sun 349,19 times.
... Venus has orbited Sun 136,71 times.
... Earth has orbited Sun 84,10 times.
... Mars has orbited Sun 44,71 times.
... Jupiter has orbited Sun 7,09 times.
... Saturn has orbited Sun 2,86 times.
... Uranus has orbited Sun 1,00 times.
... Neptune has orbited Sun 0,51 times.
... Pluto has orbited Sun 0,34 times.

Special birthdays

Next major birthday for Jean Piaget would be: Sunday, 09.08.2026 (130 years)

Birthday Year Weekday Date Candles blown
10. 1906 Thursday August 9, 1906 55
18. 1914 Sunday August 9, 1914 171
20. 1916 Wednesday August 9, 1916 210
25. 1921 Tuesday August 9, 1921 325
30. 1926 Monday August 9, 1926 465
40. 1936 Sunday August 9, 1936 820
50. 1946 Friday August 9, 1946 1275
60. 1956 Thursday August 9, 1956 1830
70. 1966 Tuesday August 9, 1966 2485
80. 1976 Monday August 9, 1976 3240
90. 1986 Saturday August 9, 1986 4095
100. 1996 Friday August 9, 1996 5050
110. 2006 Wednesday August 9, 2006 6105
120. 2016 Tuesday August 9, 2016 7260
130. 2026 Sunday August 9, 2026 8515
140. 2036 Saturday August 9, 2036 9870
150. 2046 Thursday August 9, 2046 11325
---

Birthday in numbers

Other Number systems

Decimal:
9 • 8 • 1896
Binary:
1001 • 1000 • 11101101000
Hexadecimal:
9 • 8 • 768
Octal:
11 • 10 • 3550
Roman:
IX • VIII • MDCCCXCVI
Morsecode:
−−−−− −−−−· ·−·−·− −−−−− −−−·· ·−·−·− ·−−−− −−−·· −−−−· −····
Numbers to letters:
aj • ai • bijg
Cross sum:
41
Factor product:
136512
Birthday in words:
nine • eight • one thousand eight hundred ninety six

Historical Events

How old was Jean Piaget back then?

Als Baby (0-2 Jahre)

April 21, 1898
Spanish–American War (Age: 1 years and 8 months) 🔗

Als Kind (2-10 Jahre)

May 29, 1899
Hague Convention (Age: 2 years and 9 months) 🔗

Als Erwachsener 20-30 Jahre

January 16, 1920
Prohibition begins in the United States with the 18th Amendment, banning the manufacture, sale, and transport of alcoholic beverages. (Age: 23 years and 5 months) 🔗
August 18, 1920
The 19th Amendment is ratified, granting women the right to vote across the United States. (Age: 24 years and 0 months) 🔗
March 12, 1921
The Soviet Union adopts the New Economic Policy (NEP), allowing some private enterprise to boost the post-war economy. (Age: 24 years and 7 months) 🔗
February 28, 1922
The United Kingdom unilaterally declares Egypt independent, ending the British protectorate. (Age: 25 years and 6 months) 🔗
October 28, 1922
Benito Mussolini and his Fascist party seize power in Italy following the March on Rome. (Age: 26 years and 2 months) 🔗
November 4, 1922
Howard Carter discovers the tomb of Tutankhamun in Egypt's Valley of the Kings, sparking a global frenzy for archaeology. (Age: 26 years and 2 months) 🔗
December 30, 1922
The Union of Soviet Socialist Republics (USSR) is officially established. (Age: 26 years and 4 months) 🔗
October 29, 1923
The Republic of Turkey is proclaimed by Mustafa Kemal Atatürk, marking the end of the Ottoman Empire. (Age: 27 years and 2 months) 🔗
January 21, 1924
Vladimir Lenin, the leader of the Bolshevik Revolution and first head of the Soviet Union, dies. (Age: 27 years and 5 months) 🔗
January 24, 1924
The first Winter Olympics take place in Chamonix, France, establishing a new tradition in international sport. (Age: 27 years and 5 months) 🔗

Als Erwachsener 30-40 Jahre

May 20, 1927
Charles Lindbergh completes the first solo non-stop transatlantic flight, flying from New York to Paris. (Age: 30 years and 9 months) 🔗
October 6, 1927
The Jazz Singer premieres, the first feature-length motion picture with synchronized sound, marking the end of the silent film era. (Age: 31 years and 1 months) 🔗
February 12, 1928
The first long-distance television broadcast is achieved between London and New York by John Logie Baird. (Age: 31 years and 6 months) 🔗
August 27, 1928
The Kellogg–Briand Pact is signed, in which 62 nations agree to renounce war as an instrument of national policy. (Age: 32 years and 0 months) 🔗
September 3, 1928
Scottish physician Alexander Fleming discovers penicillin, marking the beginning of the antibiotic age. (Age: 32 years and 0 months) 🔗
October 24, 1929
Black Thursday, the first major crash of the U.S. stock market, heralds the start of the Great Depression. (Age: 33 years and 2 months) 🔗
January 26, 1930
The Salt Satyagraha begins: Mahatma Gandhi begins a 240-mile march to protest the British salt tax in India. (Age: 33 years and 5 months) 🔗
March 13, 1930
The planet Pluto is officially discovered by astronomer Clyde Tombaugh at the Lowell Observatory. (Age: 33 years and 7 months) 🔗
September 18, 1931
The Mukden Incident provides the pretext for Japan's invasion of Manchuria, China, marking a key step toward World War II. (Age: 35 years and 1 months) 🔗
May 20, 1932
Amelia Earhart begins her solo non-stop transatlantic flight, becoming the first woman to achieve this feat. (Age: 35 years and 9 months) 🔗

Als Erwachsener 40-50 Jahre

May 6, 1937
The German airship Hindenburg catches fire while landing in Lakehurst, New Jersey, ending the era of commercial airship travel. (Age: 40 years and 8 months) 🔗
December 13, 1937
The Nanking Massacre begins, where Japanese troops brutally murder hundreds of thousands of Chinese civilians and disarmed combatants. (Age: 41 years and 4 months) 🔗
March 12, 1938
The Anschluss: Nazi Germany annexes Austria, violating the Treaty of Versailles. (Age: 41 years and 7 months) 🔗
September 30, 1938
The Munich Agreement is signed, allowing Germany to annex the Sudetenland in Czechoslovakia, an act of appeasement that failed to prevent war. (Age: 42 years and 1 months) 🔗
November 9, 1938
Kristallnacht (Night of Broken Glass) occurs, a coordinated series of violent pogroms against Jews throughout Nazi Germany. (Age: 42 years and 3 months) 🔗
January 5, 1939
The German V-2 rocket program begins under Wernher von Braun, laying the groundwork for later space exploration. (Age: 42 years and 4 months) 🔗
August 23, 1939
The Molotov–Ribbentrop Pact is signed, a non-aggression treaty between Nazi Germany and the Soviet Union, secretly dividing Eastern Europe. (Age: 43 years and 0 months) 🔗
September 1, 1939
Germany invades Poland, officially starting World War II in Europe. (Age: 43 years and 0 months) 🔗
May 10, 1940
Germany launches its invasion of France, Belgium, Luxembourg, and the Netherlands, initiating the Battle of France. (Age: 43 years and 9 months) 🔗
August 13, 1940
The Battle of Britain begins, a large-scale aerial conflict where the Royal Air Force defends the UK against the German Luftwaffe. (Age: 44 years and 0 months) 🔗

Als Erwachsener 50-60 Jahre

June 5, 1947
U.S. Secretary of State George Marshall announces the Marshall Plan, an initiative to aid Western Europe in economic recovery after WWII. (Age: 50 years and 9 months) 🔗
August 15, 1947
India gains independence from British rule, leading to the partition of British India into India and Pakistan. (Age: 51 years and 0 months) 🔗
May 14, 1948
The State of Israel is formally established, leading immediately to the 1948 Arab–Israeli War. (Age: 51 years and 9 months) 🔗
April 4, 1949
The North Atlantic Treaty Organization (NATO) is established as a system of collective defense against Soviet expansion. (Age: 52 years and 7 months) 🔗
October 1, 1949
Mao Zedong proclaims the establishment of the People's Republic of China (PRC), following the Chinese Civil War. (Age: 53 years and 1 months) 🔗
June 25, 1950
North Korea invades South Korea, starting the Korean War, a major conflict of the Cold War era. (Age: 53 years and 10 months) 🔗
March 29, 1951
The 22nd Amendment to the U.S. Constitution is ratified, limiting the U.S. President to two terms. (Age: 54 years and 7 months) 🔗
February 6, 1952
Elizabeth II ascends to the throne upon the death of her father, King George VI. (Age: 55 years and 5 months) 🔗
April 25, 1953
James Watson and Francis Crick publish their paper describing the double helix structure of DNA, a monumental discovery in biology. (Age: 56 years and 8 months) 🔗
June 17, 1953
The Uprising of 1953 in East Germany occurs, where protests against economic policy are suppressed by Soviet troops. (Age: 56 years and 10 months) 🔗

Als Erwachsener 60-70 Jahre

October 23, 1956
The Hungarian Revolution begins, a nationwide revolt against the government of the Hungarian People's Republic and Soviet-imposed policies. (Age: 60 years and 2 months) 🔗
October 29, 1956
The Suez Crisis begins when Israel invades the Sinai Peninsula, followed by intervention from the UK and France. (Age: 60 years and 2 months) 🔗
September 4, 1957
The Little Rock Crisis begins as Governor Orval Faubus uses the National Guard to block nine African American students from entering Central High School. (Age: 61 years and 0 months) 🔗
October 4, 1957
The Soviet Union launches Sputnik 1, the first artificial Earth satellite, initiating the Space Race. (Age: 61 years and 1 months) 🔗
March 27, 1958
Nikita Khrushchev becomes Premier of the Soviet Union, consolidating power and leading the nation through the height of the Cold War. (Age: 61 years and 7 months) 🔗
January 1, 1959
Fidel Castro's forces overthrow the dictatorship of Fulgencio Batista, concluding the Cuban Revolution. (Age: 62 years and 4 months) 🔗
February 3, 1959
Rock and roll stars Buddy Holly, Ritchie Valens, and The Big Bopper die in a plane crash, an event later known as "The Day the Music Died." (Age: 62 years and 5 months) 🔗
July 24, 1959
The "Kitchen Debate" between U.S. Vice President Richard Nixon and Soviet leader Nikita Khrushchev takes place in Moscow. (Age: 62 years and 11 months) 🔗
October 21, 1959
The Guggenheim Museum, designed by Frank Lloyd Wright, opens in New York City, becoming an iconic work of modern architecture. (Age: 63 years and 2 months) 🔗
February 1, 1960
The Greensboro sit-ins begin in North Carolina, marking a major turning point in the U.S. Civil Rights Movement. (Age: 63 years and 5 months) 🔗

Als Erwachsener 70-80 Jahre

December 13, 1966
The convention for the International Covenant on Economic, Social and Cultural Rights is adopted by the UN, a key international human rights treaty. (Age: 70 years and 4 months) 🔗
June 5, 1967
The Six-Day War begins, a short but decisive conflict between Israel and neighboring Arab states. (Age: 70 years and 9 months) 🔗
December 3, 1967
Christiaan Barnard performs the world's first successful human-to-human heart transplant in Cape Town, South Africa. (Age: 71 years and 3 months) 🔗
April 4, 1968
Martin Luther King Jr. is assassinated in Memphis, Tennessee, leading to riots in many U.S. cities. (Age: 71 years and 7 months) 🔗
August 20, 1968
Warsaw Pact troops invade Czechoslovakia to halt the liberal reforms of the Prague Spring. (Age: 72 years and 0 months) 🔗
July 3, 1969
Brian Jones, founding member of The Rolling Stones, dies just a month after leaving the band. (Age: 72 years and 10 months) 🔗
July 20, 1969
The Apollo 11 mission successfully lands on the Moon; Neil Armstrong and Buzz Aldrin become the first humans to walk on an extraterrestrial body. (Age: 72 years and 11 months) 🔗
August 15, 1969
The Woodstock Festival begins in Bethel, New York, becoming a defining moment for the counterculture generation. (Age: 73 years and 0 months) 🔗
October 29, 1969
The first message is sent over ARPANET, the precursor to the Internet, between UCLA and Stanford Research Institute. (Age: 73 years and 2 months) 🔗
April 17, 1970
The Apollo 13 mission safely returns to Earth after an oxygen tank explosion forced the crew to abort a moon landing. (Age: 73 years and 8 months) 🔗

Als Erwachsener 80-90 Jahre

May 25, 1977
The film "Star Wars: Episode IV – A New Hope" is released, launching one of the most successful film franchises of all time. (Age: 80 years and 9 months) 🔗
July 25, 1978
Louise Brown, the first "test-tube baby," is born in England, marking a major breakthrough in in-vitro fertilization (IVF). (Age: 81 years and 11 months) 🔗
September 17, 1978
The Camp David Accords are signed by Egyptian President Anwar Sadat and Israeli Prime Minister Menachem Begin, a framework for peace in the Middle East. (Age: 82 years and 1 months) 🔗
February 1, 1979
Ayatollah Ruhollah Khomeini returns to Iran after 15 years in exile, leading to the Iranian Revolution. (Age: 82 years and 5 months) 🔗
March 28, 1979
A partial nuclear meltdown occurs at the Three Mile Island power plant in Pennsylvania, the most serious accident in U.S. commercial nuclear power history. (Age: 82 years and 7 months) 🔗
November 4, 1979
The Iran hostage crisis begins when militant Iranian students storm the U.S. Embassy in Tehran and take 52 Americans hostage. (Age: 83 years and 2 months) 🔗
December 24, 1979
The Soviet–Afghan War begins as Soviet forces invade Afghanistan to support the communist government. (Age: 83 years and 4 months) 🔗
May 18, 1980
The eruption of Mount St. Helens in Washington state, a major volcanic eruption that caused widespread devastation. (Age: 83 years and 9 months) 🔗

Birthday-FAQ for Jean Piaget

Frequently asked questions

How many birthday candles did Jean Piaget blow out so far?

» At 84 years, Jean Piaget has already blown out 3570 birthday candles, if you add up all the birthdays.

When will Jean Piaget be twice as old as today?

» Jean Piaget ist 30.717 days old today. On 21.10.2064 Jean Piaget will be twice as old as today. Jean Piaget will then be 168 Jahre und 2 Monate years old.

When will Jean Piaget be half as old as today?

» On 28.08.1938 Jean Piaget was half of age today. Back then Jean Piaget were 42 Jahre und 0 Monate years old.

When was Jean Piaget conceived? - Time of your conception

» That's an interesting question. Let's try it this way: A pregnancy lasts an average of 268 days. If we subtract 268 days from the day of your birth (15.11.1895), we get the 15.11.1895. However, this statement is not very meaningful, since only 3% of pregnant women actually give birth after 268 days. Most pregnant women give birth within a time window of 10 days from the actual due date. Therefore, Jean Piaget were conceived between 05.11.1895 and 25.11.1895.

How many prime number birthdays has Jean Piaget had so far?

» At 84 years old, Jean Piaget has already celebrated 23 prime number birthdays (2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83).

How many special birthdays have I had so far?

» At 84 years, you've already celebrated 7 special number birthdays (11, 22, 33, 44, 55, 66, 77). To be able to celebrate 10 special number birthdays, you have to live to be 111. But you still have some time until then. You'll celebrate your 111th birthday on 09.08.2007. You can find out more on the page with all birthdays.

How old was Jean Piaget at the turn of the millennium in 2000?

» Jean Piaget was born exactly 37764 days before the turn of the millennium in January 1, 2000. At that time, Jean Piaget was 103 years and 4 months old.

Oldest person in the world

Jean Piaget is currently 38 years younger (44717 days) than the officially oldest person in the world, the Frenchwoman Jeanne Calment. She was born on February 21, 1875 and died on August 4, 1997 at the age of 122 years and 164 days.

Jean Piaget has lived 14062 days longer than he/she was dead.

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Disclaimer

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