January 31 » Czechoslav Trade Union Association is founded in Prague.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of marriage May 20, 1920
The temperature on May 20, 1920 was between 6.4 °C and 15.9 °C and averaged 11.2 °C. There was 6.8 mm of rain. There was 0.1 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. 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 8 » The steel strike of 1919 ends in failure for the Amalgamated Association of Iron, Steel and Tin Workers labor union.
May 2 » The first game of the Negro National League baseball is played in Indianapolis.
May 7 » Treaty of Moscow: Soviet Russia recognizes the independence of the Democratic Republic of Georgia only to invade the country six months later.
May 16 » In Rome, Pope Benedict XV canonizes Joan of Arc.
August 15 » Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
November 21 » Irish War of Independence: In Dublin, 31 people are killed in what became known as "Bloody Sunday".
Day of death February 17, 1990
The temperature on February 17, 1990 was between -1.9 °C and 9.6 °C and averaged 4.3 °C. There was 0.5 mm of rain during 0.9 hours. The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 2 » Apartheid: F. W. de Klerk announces the unbanning of the African National Congress and promises to release Nelson Mandela.
February 14 » Ninety-two people are killed when Indian Airlines Flight 605 crashes in Bangalore, India.
March 4 » American basketball player Hank Gathers dies after collapsing during the semifinals of a West Coast Conference Tournament game.
April 7 » Iran–Contra affair: John Poindexter is found guilty of five charges for his part in the scandal (the conviction is later reversed on appeal).
May 17 » The General Assembly of the World Health Organization (WHO) eliminates homosexuality from the list of psychiatric diseases.
November 20 » Andrei Chikatilo, one of the Soviet Union's most prolific serial killers, is arrested; he eventually confesses to 56 killings.
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/I189331.php : accessed September 28, 2026), "Jantje Molenhuis (1897-1990)".
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