On This Day in History

December 21

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3200
Culture

First Winter Solstice Marked at Stonehenge

Ancient peoples aligned Stonehenge with the winter solstice, marking the shortest day of the year. The alignment reflects early astronomical knowledge and religious significance tied to solar cycles.

๐Ÿ“ Wiltshire, England

Culture Astronomy Ancient History
2018
Politics

Cambodian Genocide Tribunal Convicts Former Khmer Rouge Leaders

A UN-backed tribunal found two surviving Khmer Rouge leaders guilty of genocide for atrocities committed during Pol Potโ€™s regime, bringing partial justice for Cambodiaโ€™s darkest chapter.

๐Ÿ“ Phnom Penh, Cambodia

Politics Genocide Cambodia
2016
Science

China Begins Operation of World's Largest Radio Telescope (FAST)

China began operations of FAST, the world's largest single-dish radio telescope, in Guizhou province. The project enhanced global capacity for space observation and search for extraterrestrial life.

๐Ÿ“ Guizhou, China

Science Astronomy China
2012
Culture

First Day of the Mayan Calendarโ€™s New Baktun Cycle

The Mayan Long Count calendar completed its 13th baktun, prompting widespread speculation about apocalyptic events. In reality, it marked the beginning of a new cycle in Mayan cosmology.

๐Ÿ“ Mesoamerica

Culture Calendar Maya
1988
Tragedy

Pan Am Flight 103 Bombing Over Lockerbie, Scotland

A terrorist bomb exploded aboard Pan Am Flight 103 over Lockerbie, Scotland, killing 270 people. The attack was later linked to Libyan agents and remains one of the deadliest airline bombings.

๐Ÿ“ Lockerbie, Scotland, United Kingdom

Tragedy Terrorism Aviation
1977
Science

Japan Launches Its First Weather Satellite, Himawari-1

Japan successfully launched Himawari-1, its first geostationary weather satellite, marking a key step in Asiaโ€™s space and meteorological capabilities.

๐Ÿ“ Tanegashima Space Center, Japan

Science Space Japan
1968
Science

Apollo 8 Launches as First Crewed Mission to Orbit the Moon

NASA launched Apollo 8, the first human spaceflight to leave Earth orbit and orbit the Moon. It paved the way for the later Apollo 11 landing and marked a major milestone in the space race.

๐Ÿ“ Kennedy Space Center, Florida, United States

Science Space NASA
1958
Politics

Niger Gains Independence from France

Niger voted overwhelmingly in favor of becoming an autonomous republic within the French Community, a step that eventually led to its full independence in 1960 during Africaโ€™s decolonization wave.

๐Ÿ“ Niamey, Niger

Politics Africa Decolonization
1954
Science

First Flight of Boeing B-52 Stratofortress

The U.S. Air Force successfully completed the maiden flight of the B-52 Stratofortress, a long-range bomber that would become a cornerstone of American strategic air power for decades.

๐Ÿ“ Seattle, Washington, United States

Science Military Aviation
1953
Science

Piltdown Man Hoax Exposed

British scientists officially exposed the Piltdown Man fossil as a hoax, revealing that the supposed 'missing link' between apes and humans was a deliberate forgery involving a human skull and orangutan jaw.

๐Ÿ“ London, United Kingdom

Science Archaeology Fraud
1946
Science

Founding of the Soviet Union's First Atomic Research Institute

The USSR officially opened its first atomic energy institute, laying the foundation for the Soviet nuclear weapons and energy programs during the early Cold War period.

๐Ÿ“ Moscow, Soviet Union

Science Nuclear Soviet Union
1945
War

Death of General George S. Patton

U.S. General George S. Patton, a key figure in the Allied victory during World War II, died from injuries sustained in a car accident shortly after the war ended in Europe.

๐Ÿ“ Heidelberg, Germany

War WWII United States
1943
Politics

Stalin Begins Soviet Deportations of Chechens and Ingush

Joseph Stalin ordered the forced deportation of Chechens and Ingush people from the Caucasus to Central Asia, accusing them of Nazi collaboration. Thousands died during the operation.

๐Ÿ“ Chechnya and Ingushetia, Soviet Union

Politics Soviet Union Ethnic Cleansing
1937
Culture

First Full-Length Animated Movie Released in Color โ€” Disneyโ€™s Snow White

Walt Disney's 'Snow White and the Seven Dwarfs', the first full-length cel-animated feature in color, premiered in Los Angeles. It became a landmark in film history and launched the Disney empire.

๐Ÿ“ Los Angeles, California, United States

Culture Film Animation
1933
Exploration

First Solo Flight Around the World Completed by Wiley Post

Wiley Post completed the first solo flight around the world, enhancing public interest in aviation and contributing to the development of flight navigation and pressurized suits.

๐Ÿ“ New York City, United States

Exploration Aviation United States
1921
Politics

Estonia and Latvia Officially Join the League of Nations

Estonia and Latvia were admitted to the League of Nations, gaining international recognition following independence from the Russian Empire and reinforcing their post-WWI sovereignty.

๐Ÿ“ Geneva, Switzerland

Politics Europe League of Nations
1913
Culture

First Crossword Puzzle Published in New York World

Arthur Wynneโ€™s 'word-cross' puzzle was published in the New York World, becoming the first modern crossword. It quickly grew in popularity and became a staple of newspapers and puzzle books.

๐Ÿ“ New York City, United States

Culture Games Publishing
1902
Culture

First Publication of 'The Tale of Peter Rabbit'

Beatrix Potterโ€™s 'The Tale of Peter Rabbit' was first published commercially, becoming a classic of childrenโ€™s literature and a lasting cultural icon known worldwide.

๐Ÿ“ London, United Kingdom

Culture Literature Children
1804
Politics

Birth of Benjamin Disraeli, British Prime Minister and Reformer

Benjamin Disraeli, who served twice as British Prime Minister and expanded the British Empire, was born. Known for his rivalry with Gladstone, he left a significant legacy in Victorian politics.

๐Ÿ“ London, United Kingdom

Politics United Kingdom Empire
1118
Politics

Birth of Thomas Becket, Archbishop and Martyr

Thomas Becket, who would become Archbishop of Canterbury and later be martyred for defending church rights against the English crown, was born. He was canonized shortly after his death.

๐Ÿ“ London, England

Politics Religion England