The temperature on June 21, 1920 was between 10.2 °C and 20.4 °C and averaged 15.6 °C. There was 10.3 mm of rain. There was 7.2 hours of sunshine (43%). 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 2 » The second Palmer Raid, ordered by the US Department of Justice, results in 6,000 suspected communists and anarchists being arrested and held without trial.
February 9 » Under the terms of the Svalbard Treaty, international diplomacy recognizes Norwegian sovereignty over Arctic archipelago Svalbard, and designates it as demilitarized.
February 13 » The Negro National League is formed.
February 29 » Czechoslovak National Assembly adopts the Constitution.
August 31 » Polish–Soviet War: A decisive Polish victory in the Battle of Komarów.
November 16 » Qantas, Australia's national airline, is founded as Queensland and Northern Territory Aerial Services Limited.
Day of death April 25, 2001
The temperature on April 25, 2001 was between 6.9 °C and 15.9 °C and averaged 10.2 °C. There was 3.8 mm of rain during 4.0 hours. There was 3.0 hours of sunshine (21%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 15 » The first draft of the complete human genome is published in Nature.
April 25 » Michele Alboreto is killed while testing an Audi R8 at the Lausitzring in Germany.
May 9 » In Ghana, 129 football fans die in what became known as the Accra Sports Stadium disaster. The deaths are caused by a stampede (caused by the firing of tear gas by police personnel at the stadium) that followed a controversial decision by the referee.
June 28 » Slobodan Milošević is extradited to the ICTY in The Hague to stand trial.
September 10 » Antônio da Costa Santos, mayor of Campinas, Brazil is assassinated.
November 13 » War on Terror: In the first such act since World War II, US President George W. Bush signs an executive order allowing military tribunals against foreigners suspected of connections to terrorist acts or planned acts on the United States.
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/I81049.php : accessed February 14, 2026), "Hendrik van der Heide (1920-2001)".
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