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This Day in History

August 20

"Voyager 2 launches into the dark, bound for the stars."

9 Events
6 Born
1 Died
1977 NASA Launches Voyager 2
1833

Benjamin Harrison

23rd President of the United States

Benjamin Harrison served as president from 1889 to 1893, overseeing the admission of six states to the Union — more than any other president. The grandson of President William Henry Harrison, he signed the Sherman Antitrust Act and presided over a major expansion of the federal government.

1890

H. P. Lovecraft

American horror and science fiction writer

H. P. Lovecraft created the Cthulhu Mythos — a shared fictional universe of cosmic horror that has become one of the most influential bodies of weird fiction ever written. Though largely unrecognized in his lifetime, his work profoundly influenced Stephen King, Guillermo del Toro, and countless others.

1948

Robert Plant

Lead vocalist of Led Zeppelin

Robert Plant's extraordinary vocal range and physical stage presence made him one of the defining rock vocalists of the 20th century. As the frontman of Led Zeppelin, he helped create hard rock and heavy metal, recording immortal albums including Led Zeppelin IV and Physical Graffiti.

1944

Rajiv Gandhi

6th Prime Minister of India

Rajiv Gandhi became India's youngest prime minister at age 40 following the assassination of his mother Indira Gandhi in 1984. His tenure is associated with economic liberalization and the introduction of computers and technology into Indian governance. He was himself assassinated by a suicide bomber in 1991.

1942

Isaac Hayes

American musician and actor

Isaac Hayes was a pioneering soul and funk musician who won an Academy Award for the theme from Shaft (1971), becoming the first Black composer to win that award. He was a core writer and producer for the Stax Records sound and later found a new generation of fans as the voice of Chef on South Park.

1941

Slobodan Milošević

President of Serbia and Yugoslavia

The controversial leader whose nationalist policies contributed to the breakup of Yugoslavia and the wars of the 1990s. He was later tried for war crimes at The Hague, where he died during the trial in 2006.

636

Battle of Yarmouk — Arabs Defeat Byzantium

Arab Muslim forces decisively defeat the Byzantine Empire at the Battle of Yarmouk in what is now Syria. The six-day battle effectively ended Byzantine rule over the Levant and opened the door to the rapid Arab expansion across the Middle East and North Africa.

1672

Johan and Cornelis de Witt Lynched in The Hague

Dutch Grand Pensionary Johan de Witt and his brother Cornelis are murdered by a pro-Orangist mob in The Hague in one of the most notorious political assassinations in Dutch history. The killings followed France's invasion of the Dutch Republic and marked the rise of William III of Orange.

1858

Darwin and Wallace Publish Theory of Evolution

Charles Darwin and Alfred Russel Wallace publish their theory of evolution by natural selection, with their papers printed in the Journal of the Proceedings of the Linnean Society of London — formally announcing one of the most transformative ideas in the history of science.

1882

Tchaikovsky's 1812 Overture Premieres

Pyotr Ilyich Tchaikovsky's spectacular 1812 Overture receives its world premiere in Moscow during the consecration of the Cathedral of Christ the Saviour. Composed to commemorate Napoleon's disastrous retreat from Moscow, it features actual cannon fire in the score.

1940

Leon Trotsky Fatally Wounded in Mexico

Ramón Mercader, a Stalinist agent, strikes exiled Russian revolutionary Leon Trotsky with an ice axe at his home in Coyoacán, Mexico. Trotsky dies the following day, ending one of the most dramatic political persecutions of the 20th century.

1968

Warsaw Pact Invades Czechoslovakia

Soviet-led Warsaw Pact forces invade Czechoslovakia overnight, crushing the Prague Spring reform movement led by Alexander Dubček. The invasion prompted the Brezhnev Doctrine justifying Soviet intervention in socialist countries and shocked the Western world.

1975

NASA Launches Viking 1 to Mars

NASA launches the Viking 1 spacecraft toward Mars. The following year it became the first spacecraft to successfully land on Mars and transmit color photographs from the Martian surface, searching — inconclusively — for signs of life.

1977

Voyager 2 Launched

NASA launches Voyager 2, which will go on to become the only spacecraft to visit all four outer planets — Jupiter, Saturn, Uranus, and Neptune — before entering interstellar space in 2018.

1991

Estonia Declares Independence from the Soviet Union

Estonia formally declares the restoration of its pre-war independence during the chaos of the failed Soviet coup attempt, becoming the first Soviet republic to do so. Estonia, Latvia, and Lithuania gained international recognition within days.

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1940

Leon Trotsky

Russian revolutionary and Marxist theorist

Leon Trotsky, co-leader of the Bolshevik Revolution and founder of the Red Army, died in Mexico City one day after being struck by an ice axe wielded by a Soviet agent. Exiled by Stalin in 1929, he had spent years warning the world about Stalinism's totalitarian nature.

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