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 16 » Zeta Phi Beta Sorority Incorporated was founded on the campus of Howard University.
February 10 » Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
March 28 » Palm Sunday tornado outbreak of 1920 affects the Great Lakes region and Deep South states.
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
August 15 » Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
October 10 » The Carinthian plebiscite determines that the larger part of the Duchy of Carinthia should remain part of Austria.
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
January 1 » The People's Democratic Party of Afghanistan is founded in Kabul, Afghanistan.
February 21 » Malcolm X is assassinated while giving a talk at the Audubon Ballroom in Harlem.
March 21 » Dr. Martin Luther King, Jr. leads 3,200 people on the start of the third and finally successful civil rights march from Selma to Montgomery, Alabama.
June 9 » Vietnam War: The Viet Cong commences combat with the Army of the Republic of Vietnam in the Battle of Đồng Xoài, one of the largest battles in the war.
September 30 » In Indonesia, a coup by the 30 September Movement is crushed, leading to a mass anti-communist purge, with over 500,000 people killed.
October 28 » Pope Paul VI promulgates Nostra aetate, by which the Church officially recognizes the legitimacy of non-Christian faiths.
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 December 31, 2025), "Sikke Helder (1920-1965)".
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