The temperature on November 18, 1920 was between -3.0 °C and 4.2 °C and averaged 0.6 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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.
March 22 » Azeri and Turkish army soldiers with participation of Kurdish gangs attacked the Armenian inhabitants of Shushi (Nagorno Karabakh).
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
May 29 » The Louth flood of 1920 was a severe flash flooding in the Lincolnshire market town of Louth which occurred 29 May 1920, resulting in 23 fatalities in 20 minutes. It has been described as one of the most significant flood disasters in Britain during the 20th century.
July 15 » The Polish Parliament establishes Silesian Voivodeship before the Polish-German plebiscite.
August 15 » Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
October 14 » Finland and Soviet Russia sign the Treaty of Tartu, exchanging some territories.
When copying data from this family tree, please include a reference to the origin: Henk Panjer, "Family tree Panjer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-panjer/I5167.php : accessed December 29, 2025), "Harm Hendrik Boon (± 1898-????)".
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