February 9 » William G. Morgan creates a game called Mintonette, which soon comes to be referred to as volleyball.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
June 28 » The United States Court of Private Land Claims rules James Reavis’s claim to Barony of Arizona is "wholly fictitious and fraudulent."
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
September 18 » The Atlanta Exposition Speech on race relations is delivered by Booker T. Washington.
October 21 » The Republic of Formosa collapses as Japanese forces invade.
Day of marriage June 5, 1920
The temperature on June 5, 1920 was between 4.9 °C and 13.6 °C and averaged 9.9 °C. There was 0.3 mm of rain. There was 0.2 hours of sunshine (1%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. 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 23 » The Netherlands refuses to surrender the exiled Kaiser Wilhelm II of Germany to the Allies.
February 10 » Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
February 14 » The League of Women Voters is founded in Chicago.
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
May 7 » Treaty of Moscow: Soviet Russia recognizes the independence of the Democratic Republic of Georgia only to invade the country six months later.
July 12 » The Soviet–Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
Day of death June 12, 1981
The temperature on June 12, 1981 was between 6.2 °C and 15.9 °C and averaged 12.8 °C. There was -0.1 mm of rain. There was 4.7 hours of sunshine (28%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
July 19 » In a private meeting with U.S. President Ronald Reagan, French President François Mitterrand reveals the existence of the Farewell Dossier, a collection of documents showing the Soviet Union had been stealing American technological research and development.
July 29 » A worldwide television audience of over 700million people watch the wedding of Charles, Prince of Wales, and Lady Diana Spencer at St Paul's Cathedral in London.
July 30 » As many as 50,000 demonstrators, mostly women and children, took to the streets in Łódź to protest food ration shortages in Communist Poland.
August 1 » MTV begins broadcasting in the United States and airs its first video, "Video Killed the Radio Star" by The Buggles.
September 26 » Nolan Ryan sets a Major League record by throwing his fifth no-hitter.
December 14 » Arab–Israeli conflict: Israel's Knesset ratifies the Golan Heights Law, extending Israeli law to the occupied Golan Heights.
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/I83940.php : accessed October 11, 2026), "Roelof Aalders (1895-1981)".
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