On This Day

Albert Einstein

Theoretical Physicist Albert Einstein

Profession: Theoretical Physicist

United States of America

Biography: A Jewish-born German, later naturalised as a US citizen, Einstein became the most influential physicist of the 20th century.

He developed his special theory of relativity in response to problems he saw with Newtonian mechanics. His mass–energy equivalence formula E = mc2 has been called the "the world's most famous equation".

He was awarded the Nobel Prize for Physics in 1921 and later warned President Roosevelt of the dangers of bombs being developed, later protesting against their use as weapons.

Born: March 14, 1879
Birthplace: Ulm, German Empire
Star Sign: Pisces

Died: April 18, 1955 (aged 76)
Cause of Death: Abdominal aortic aneurysm

Articles and Photos

Married Life

  • 1903-01-06 Theoretical Physicist Albert Einstein (23) weds Mileva Maric
  • 1919-02-14 Theoretical Physicist Albert Einstein (39) divorces Mileva Maric after 16 years of marriage
  • 1919-06-02 Theoretical Physicist Albert Einstein (40) weds his cousin Elsa Lowenthal (43)

Historical Events

  • 1905-03-17 Albert Einstein finishes his scientific paper detailing his Quantum Theory of Light, one of the foundations of modern physics
  • 1905-07-01 Albert Einstein introduces his theory of special relativity
  • 1905-09-27 The physics journal Annalen der Physik publishes Albert Einstein's paper "Does the Inertia of a Body Depend Upon Its Energy Content?", introducing the equation E=mc².
  • 1908-11-14 Albert Einstein presents his quantum theory of light
  • 1919-05-29 Albert Einstein's Theory of Relativity, that when light passes a large body, gravity will bend the rays confirmed by Arthur Eddington's expedition to photograph a solar eclipse on the island of Principe, West Africa
  • 1921-04-02 Albert Einstein lectures in New York City on his new "Theory of Relativity"
  • 1923-07-29 Albert Einstein speaks on pacifism in Berlin
  • 1930-11-11 Patent number US1781541 is awarded to Albert Einstein and Leó Szilárd for their invention of the Einstein refrigerator
  • 1932-12-05 German physicist Albert Einstein granted a visa to enter America
  • 1933-10-17 Albert Einstein arrives in US as a refugee from Nazi Germany
  • 1939-10-11 Albert Einstein informs FDR of the possibilities of an atomic bomb
  • 1950-02-12 Albert Einstein warns against hydrogen bomb
  • 1953-03-30 Albert Einstein announces revised unified field theory
  • 2017-10-24 Albert Einstein's "Theory of Happiness", written as a note for a bellboy instead of a tip in Tokyo in 1922 sells for $1.56 million
  • 2018-07-26 Observation of a black hole by The Very Large Telescope in Chile proves Albert Einstein's prediction of "gravitational redshift", published in "Journal Astronomy & Astrophysics"
  • 2018-12-05 Letter by Albert Einstein from 1954 on concept of religion sells for $2.9 million at Christie's in New York
  • 2021-11-23 Manuscript of early workings of Albert Einstein's theory of relativity "one of the most important scientific documents of the 20th century" sells at auction for $13 million

Quotes by Albert Einstein

  • "Few people are capable of expressing with equanimity opinions which differ from that of their social environment."
  • "Two things are infinite: the universe and human stupidity; and I'm not sure about the universe."

Biographies and Sources

Famous Physicists