Science · Technology · 1904–1967

J. Robert Oppenheimer — Age, Birthday & Biography

Born: 22 April 1904 · Died: 18 February 1967 · Age: 62

Quick facts

  • Date of birth22 April 1904
  • Date of death18 February 1967
  • Age at death62
  • NationalityAmerican
  • BirthplaceManhattan, United States

Editor's Take:

J. Robert Oppenheimer led the team that built the atomic bomb. He then spent his remaining years haunted by what it meant. He was a brilliant theorist who could unite difficult scientists around one goal. After the war he argued for international control of nuclear weapons and opposed the hydrogen bomb. That stance helped his enemies strip his security clearance in 1954. The US government formally reversed that decision in 2022.

Key Milestones

  1. 1943: Becomes director of Los Alamos
  2. 1945: Witnesses the Trinity test
  3. 1947: Leads the Institute for Advanced Study
  4. 1954: Loses his security clearance

J. Robert Oppenheimer (born Julius Robert Oppenheimer; April 22, 1904 – February 18, 1967) was an American theoretical physicist who served as the director of the Manhattan Project's Los Alamos Laboratory during World War II.

Text from Wikipedia, licensed under CC BY-SA 4.0

Profile

J. Robert Oppenheimer: Father of the Atomic Bomb

American physicist, born 1904

J. Robert Oppenheimer was born in Manhattan on 22 April 1904.

He directed the Los Alamos laboratory in the Manhattan Project.

He watched the first atomic test, Trinity, in 1945.

His security clearance was removed in 1954.

Career highlights

  1. 1927Doctorate: Göttingen
  2. 1943Los Alamos: director
  3. 1945Trinity: first atomic test
  4. 1947Princeton: Institute director
  5. 1954Clearance: revoked

Did you know?He read Sanskrit and later recalled a line from the Bhagavad Gita after the Trinity test.

Would be
122
Age at death
62
Years since death
59

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When is J. Robert Oppenheimer's birthday?
J. Robert Oppenheimer's birthday is April 22. He was born on April 22, 1904 in Manhattan, United States.
How old was J. Robert Oppenheimer when he died?
J. Robert Oppenheimer died on February 18, 1967, aged 62.
Who shares a birthday with J. Robert Oppenheimer?
Famous people who share J. Robert Oppenheimer's April 22 birthday include Vladimir Lenin, Immanuel Kant, Jack Nicholson, Donald Tusk and Isabella I of Castile.

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Reviewed by the Who Shares My Birthday editorial team.

Last reviewed: October 2026