January 31 » Czechoslav Trade Union Association is founded in Prague.
February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
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).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of death February 21, 1990
The temperature on February 21, 1990 was between 6.3 °C and 13.7 °C and averaged 9.9 °C. There was 0.1 mm of rain during 0.1 hours. There was 4.3 hours of sunshine (42%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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.
April 9 » Thirteen thousand members of the Dene and Métis tribes sign a land claim agreement for 180,000 square kilometres (69,000sqmi) in the Mackenzie Valley of the western Arctic.
April 23 » Namibia becomes the 160th member of the United Nations and the 50th member of the Commonwealth of Nations.
May 13 » The Dinamo–Red Star riot took place at Maksimir Stadium in Zagreb, Croatia between the Bad Blue Boys (fans of Dinamo Zagreb) and the Delije (fans of Red Star Belgrade).
June 20 » The 7.4 Mw Manjil–Rudbar earthquake affects northern Iran with a maximum Mercalli intensity of X (Extreme), killing 35,000–50,000, and injuring 60,000–105,000.
August 10 » The Magellan space probe reaches Venus.
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/I108806.php : accessed March 1, 2026), "Grietje Flikkema (1897-1990)".
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