February 1 » Fountains Valley, Pretoria, the oldest nature reserve in Africa, is proclaimed by President Paul Kruger.
March 15 » Heian Shrine is founded.
April 6 » Oscar Wilde is arrested in the Cadogan Hotel, London, after losing a libel case against the Marquess of Queensberry.
April 8 » In Pollock v. Farmers' Loan & Trust Co. the Supreme Court of the United States declares unapportioned income tax to be unconstitutional.
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of marriage May 12, 1921
The temperature on May 12, 1921 was between 9.2 °C and 21.1 °C and averaged 15.5 °C. There was 9.1 hours of sunshine (59%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 12 » Acting to restore confidence in baseball after the Black Sox Scandal, Judge Kenesaw Mountain Landis is elected as Major League Baseball's first commissioner.
January 16 » The Marxist Left in Slovakia and the Transcarpathian Ukraine holds its founding congress in Ľubochňa.
March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
June 12 » Mikhail Tukhachevsky orders the use of chemical weapons against the Tambov Rebellion, bringing an end to the peasant uprising.
November 4 » The Saalschutz Abteilung (hall defense detachment) of the Nazi Party is renamed the Sturmabteilung (storm detachment) after a large riot in Munich.
Day of death January 12, 1987
The temperature on January 12, 1987 was between -14.4 °C and -7.6 °C and averaged -10.7 °C. There was 5.7 hours of sunshine (70%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
May 11 » Klaus Barbie goes on trial in Lyon for war crimes committed during World War II.
June 12 » Cold War: At the Brandenburg Gate, U.S. President Ronald Reagan publicly challenges Mikhail Gorbachev to tear down the Berlin Wall.
June 29 » Vincent Van Gogh’s painting, the Le Pont de Trinquetaille, was bought for $20.4million at an auction in London, England.
October 11 » Start of Operation Pawan by Indian forces in Sri Lanka. Thousands of civilians, insurgents, soldiers die.
November 25 » Typhoon Nina pummels the Philippines with category 5 winds of 165mph and a surge that destroys entire villages. At least 1,036 deaths are attributed to the storm.
December 9 » Israeli–Palestinian conflict: The First Intifada begins in the Gaza Strip and West Bank.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I86398.php : accessed October 6, 2026), "Arend Grimmius (1895-1987)".
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