Notices by On This Day In History (onthisday@mastodon.social)

Today in 1947, 78 years ago: New post-war Japanese constitution goes into effect.

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Today in 2001, 24 years ago: In the United States, Thomas Blanton Jr. is the second member of the Ku Klux Klan to be convicted of the bombing at the 16th Street Baptist Church in Birmingham that killed four African-American girls.

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Today in 1941, 84 years ago: World War II: The Greek government and King George II evacuate Athens before the invading Wehrmacht.

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Today in 1999, 26 years ago: Columbine High School massacre: Eric Harris and Dylan Klebold kill 14 people and injure 23 others before committing suicide at Columbine High School in Columbine, Colorado.

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Today in 1987, 38 years ago: The Simpsons first appear as a series of shorts on The Tracey Ullman Show, first starting with "Good Night".

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Today in 1955, 70 years ago: at the Nevada Test Site, the United States detonates its 22 kiloton Met atomic bomb, the 63rd of the 1127 that that country detonated between 1945 and 1992.

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Today in 1983, 42 years ago: in Chicago, Harold Washington is elected as the first black mayor in history.

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Today in 1795, 230 years ago: The French First Republic adopts the kilogram and gram as its primary unit of mass.

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Today in 1566, 459 years ago: two hundred Dutch aristocrats led by Hendrick van Brederode, appear before Margarita of Parma and present the Petition of Compromise, denouncing the Spanish Inquisition in the Seventeen Provinces.

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Today in 1492, 533 years ago: in Granada (Spain), the Catholic Monarchs signed the Decree of the Alhambra, ordering their 0.15 million Jewish and Muslim subjects to convert to Catholicism or face expulsion. Subsequently, twelve other kingdoms of the Iberian Peninsula will do the same.

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Today in 1998, 27 years ago: Netscape releases Mozilla source code under an open source license.

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Today in 1823, 202 years ago: In the town of San José (Costa Rica), a group of imperialists from the city of Cartago -without knowing that the Mexican Empire had disappeared ten days earlier - take over the Arms Barracks and carry out the first coup d 'état in the history of that country: they proclaim the annexation of Costa Rica to the Mexican Empire.

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Today in 1973, 52 years ago: Vietnam War: The last United States combat soldiers leave South Vietnam.

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Today in 2020, 5 years ago: a team of scientists, using the WISE space telescope, discovered a comet, which a week later will be named NEOWISE.

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Today in 1855, 170 years ago: in the United States, the Canadian geologist Abraham P. Gesner patents a new petroleum distillate that he calls “kerosene” (or kerosene).

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Today in 1812, 213 years ago: A political cartoon in the Boston-Gazette coins the term "gerrymander" to describe oddly shaped electoral districts designed to help incumbents win reelection.

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Today in 1933, 92 years ago: in New York (United States), Jewish protesters demand a boycott against German products in response to the persecution of Jews in Nazi Germany.

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Today in 1919, 106 years ago: in Milan (Italy) Benito Mussolini founded the Fasci italiani di combattimento, antecedent of the National Fascist Party.

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Today in 1980, 45 years ago: in El Salvador, Archbishop Óscar Romero gives his famous sermon addressing the army, asking it to stop killing Salvadorans. The next day he will be killed during a mass by government agents.

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Today in 1933, 92 years ago: Nazi Germany opens its first concentration camp, Dachau.

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