The temperature on May 1, 1920 was between 3.3 °C and 16.7 °C and averaged 10.9 °C. There was 0.2 mm of rain. There was 4.9 hours of sunshine (33%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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 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.
January 16 » Zeta Phi Beta Sorority Incorporated was founded on the campus of Howard University.
February 29 » Czechoslovak National Assembly adopts the Constitution.
July 12 » The Soviet–Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
August 16 » Polish–Soviet War: The Battle of Radzymin concludes; the Soviet Red Army is forced to turn away from Warsaw.
September 7 » Two newly purchased Savoia flying boats crash in the Swiss Alps en route to Finland where they would serve with the Finnish Air Force, killing both crews.
Day of marriage March 4, 1950
The temperature on March 4, 1950 was between 4.5 °C and 11.0 °C and averaged 7.0 °C. There was 7.6 hours of sunshine (69%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 17 » United Nations Security Council Resolution 79 relating to arms control is adopted.
May 29 » The St. Roch, the first ship to circumnavigate North America, arrives in Halifax, Nova Scotia, Canada.
July 24 » Cape Canaveral Air Force Station begins operations with the launch of a Bumper rocket.
August 12 » Korean War: Bloody Gulch massacre: 75 American POWs are massacred by North Korean Army.
September 15 » Korean War: The U.S. X Corps lands at Inchon.
September 26 » Korean War: United Nations troops recapture Seoul from North Korean forces.
Day of death January 13, 1965
The temperature on January 13, 1965 was between 4.2 °C and 6.7 °C and averaged 5.1 °C. There was 3.2 mm of rain during 2.6 hours. There was 1.1 hours of sunshine (13%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
March 30 » Vietnam War: A car bomb explodes in front of the United States Embassy, Saigon, killing 22 and wounding 183 others.
April 21 » The 1964–1965 New York World's Fair opens for its second and final season.
September 21 » The Gambia, Maldives and Singapore are admitted as members of the United Nations.
October 28 » Pope Paul VI promulgates Nostra aetate, by which the Church officially recognizes the legitimacy of non-Christian faiths.
November 24 » Joseph-Désiré Mobutu seizes power in the Democratic Republic of the Congo and becomes President; he rules the country (which he renames Zaire in 1971) for over 30 years, until being overthrown by rebels in 1997.
December 31 » Jean-Bédel Bokassa, leader of the Central African Republic army, and his military officers begins a coup d'état against the government of President David Dacko.
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/I117718.php : accessed October 25, 2026), "Sikke Helder (1920-1965)".
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