In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
March 24 » Robert Koch announces the discovery of Mycobacterium tuberculosis, the bacterium responsible for tuberculosis.
March 29 » The Knights of Columbus is established.
July 26 » Premiere of Richard Wagner's opera Parsifal at Bayreuth.
September 13 » Anglo-Egyptian War: The Battle of Tel el-Kebir is fought.
October 16 » The Nickel Plate Railroad opens for business.
December 16 » Wales and England contest the first Home Nations (now Six Nations) rugby union match.
Day of marriage May 20, 1921
The temperature on May 20, 1921 was between 5.7 °C and 19.3 °C and averaged 12.7 °C. There was 9.6 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 20 » The British K-class submarine HMS K5 sinks in the English Channel; all 56 on board die.
February 12 » Bolsheviks launch a revolt in Georgia as a preliminary to the Red Army invasion of Georgia.
February 27 » The International Working Union of Socialist Parties is founded in Vienna.
March 1 » The Australian cricket team captained by Warwick Armstrong becomes the first team to complete a whitewash of The Ashes, something that would not be repeated for 86 years.
July 11 » A truce in the Irish War of Independence comes into effect.
October 13 » Soviet republics sign the Treaty of Kars to formalize the borders between Turkey and the South Caucasus states.
Day of death January 9, 1961
The temperature on January 9, 1961 was between 1.6 °C and 7.1 °C and averaged 3.6 °C. There was 0.6 mm of rain during 0.9 hours. There was 3.5 hours of sunshine (44%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
February 15 » Sabena Flight 548 crashes in Belgium, killing 73, including the entire United States figure skating team along with several of their coaches and family members.
March 30 » The Single Convention on Narcotic Drugs is signed in New York City.
May 14 » Civil rights movement: A white mob twice attacks a Freedom Riders bus near Anniston, Alabama, before fire-bombing the bus and attacking the civil rights protesters who flee the burning vehicle.
August 21 » American country music singer Patsy Cline returns to record producer Owen Bradley's studio in Nashville, Tennessee to record her vocals to Willie Nelson's "Crazy", which would become her signature song.
October 30 » The Soviet Union detonates the Tsar Bomba, the most powerful explosive device ever detonated.
November 11 » Thirteen Italian Air Force servicemen, deployed to the Congo as a part of the UN peacekeeping force, are massacred by a mob in Kindu.
When copying data from this family tree, please include a reference to the origin: H. Grevinga, "Family tree Grevinga", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-grevinga/I2462.php : accessed February 15, 2026), "hendrik swaters (1882-1961)".
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