The temperature on May 11, 1920 was between 3.2 °C and 18.7 °C and averaged 12.9 °C. There was 11.6 hours of sunshine (75%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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 7 » The New York State Assembly refuses to seat five duly elected Socialist assemblymen.
January 10 » The Treaty of Versailles takes effect, officially ending World War I.
February 20 » An earthquake kills between 114 and 130 in Georgia and heavily damages the town of Gori.
April 28 » Azerbaijan is added to the Soviet Union.
August 13 » Polish–Soviet War: The Battle of Warsaw begins and will last till August 25. The Red Army is defeated.
August 18 » The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
Day of marriage May 24, 1947
The temperature on May 24, 1947 was between 9.1 °C and 19.7 °C and averaged 14.9 °C. There was 0.1 mm of rain during 0.3 hours. There was 8.1 hours of sunshine (50%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
May 3 » New post-war Japanese constitution goes into effect.
June 24 » Kenneth Arnold makes the first widely reported UFO sighting near Mount Rainier, Washington, leading to the coining of the phrase "flying saucer".
August 14 » Pakistan gains Independence from the British Empire and joins the Commonwealth of Nations.
August 15 » Founder of Pakistan, Muhammad Ali Jinnah is sworn in as first Governor-General of Pakistan in Karachi.
August 15 » India gains Independence from British rule after near 190 years of British company and crown rule, and joins the Commonwealth of Nations.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I299707.php : accessed February 20, 2026), "Harm Boersma (1920-< 2019)".
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