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This Day in History

April 18

April 18 · Wikipedia

San Francisco burns, St. Peter's cornerstone is laid, Paul Revere rides.

This day, across time

3000 BCE500 CE100015001800190020001480 · Born · Lucrezia Borgia1506 · Event · Cornerstone of St. Peter's Basilica Laid1521 · Event · Martin Luther Refuses to Recant at Diet of Worms1772 · Born · David Ricardo1775 · Event · Paul Revere's Midnight Ride1797 · Event · Napoleon Signs Peace of Leoben1813 · Born · James McCune Smith1831 · Event · University of Alabama Founded1906 · Featured · The San Francisco Earthquake and Fire1943 · Event · Death of Admiral Yamamoto1945 · Died · Ernie Pyle1955 · Event · Albert Einstein Dies
  1. 1480BornLucrezia Borgia
  2. 1506EventCornerstone of St. Peter's Basilica Laid
  3. 1521EventMartin Luther Refuses to Recant at Diet of Worms
  4. 1772BornDavid Ricardo
  5. 1775EventPaul Revere's Midnight Ride
  6. 1797EventNapoleon Signs Peace of Leoben
  7. 1813BornJames McCune Smith
  8. 1831EventUniversity of Alabama Founded
  9. 1906FeaturedThe San Francisco Earthquake and Fire
  10. 1943EventDeath of Admiral Yamamoto
  11. 1945DiedErnie Pyle
  12. 1955EventAlbert Einstein Dies

Alive in 1906

OverlapSame years; not influence

16 more figures were alive that year

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On This Day in History

8 Events
1506

Cornerstone of St. Peter's Basilica Laid

Pope Julius II lays the cornerstone of the new St. Peter's Basilica in Rome, beginning a construction project that would employ Bramante, Michelangelo, and Bernini and take over 120 years to complete.

1521

Martin Luther Refuses to Recant at Diet of Worms

On the second day of his trial, Martin Luther delivers his famous reply — "Here I stand, I can do no other" — refusing to recant his teachings before Emperor Charles V, a pivotal moment in the Protestant Reformation.

1775

Paul Revere's Midnight Ride

Paul Revere and William Dawes ride through the Massachusetts countryside warning colonial militias that British regulars are advancing on Lexington and Concord to seize patriot arms — one of the most famous acts of the American Revolution.

1797

Napoleon Signs Peace of Leoben

Napoleon Bonaparte negotiates the Peace of Leoben with Austria, effectively ending the War of the First Coalition. The armistice set the stage for the Treaty of Campo Formio and demonstrated Napoleon's ability to make peace as well as war.

1831

University of Alabama Founded

The University of Alabama is established in Tuscaloosa, becoming one of the oldest public universities in the American South.

1906

San Francisco Earthquake

A 7.9-magnitude earthquake strikes San Francisco at dawn, triggering fires that burn for three days and devastate the city, killing an estimated 700 to 3,000 people and leaving 225,000 homeless.

1943

Death of Admiral Yamamoto

Japanese Admiral Isoroku Yamamoto, the architect of the Pearl Harbor attack, is killed when his transport aircraft is ambushed by American P-38 fighters over Bougainville — the result of U.S. codebreakers deciphering his itinerary.

1955

Albert Einstein Dies

Albert Einstein dies in Princeton, New Jersey, at age 76. The theoretical physicist who reshaped humanity's understanding of space, time, and energy left behind a legacy unmatched in the history of science.

Born on This Day

1480

Lucrezia Borgia

Duchess of Ferrara

Daughter of Pope Alexander VI and one of the most famous women of the Italian Renaissance, Lucrezia Borgia was used as a political pawn through multiple marriages but eventually became a respected patron of the arts in Ferrara. Her reputation for intrigue and poison, largely propagated by her family's enemies, has endured in legend.

1772

David Ricardo

Economist

One of the most influential classical economists, Ricardo developed foundational theories on comparative advantage, rent, wages, and profit. His Principles of Political Economy shaped economic thinking for generations and remains a touchstone of the discipline.

1813

James McCune Smith

Physician & Abolitionist

The first African American to hold a medical degree, Smith earned his doctorate from the University of Glasgow after being denied admission to American schools due to his race. He returned to New York and became a leading abolitionist, intellectual, and medical practitioner.

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Notable Deaths

1955

Albert Einstein

Theoretical Physicist

Einstein died at Princeton Hospital, having refused surgery. The scientist who formulated the theory of relativity and the famous equation E=mc² had fled Nazi Germany in 1933 and spent his final decades at the Institute for Advanced Study.

1945

Ernie Pyle

War Correspondent

Beloved American war correspondent Ernie Pyle, who had covered the front lines from North Africa to Normandy and won a Pulitzer Prize, was killed by a Japanese machine gun on the island of Ie Shima, just days before Germany's surrender.

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