The temperature on April 26, 1929 was between -1.9 °C and 7.9 °C and averaged 3.9 °C. There was 3.1 hours of sunshine (21%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
April 8 » Indian independence movement: At the Delhi Central Assembly, Bhagat Singh and Batukeshwar Dutt throw handouts and bombs to court arrest.
May 16 » In Hollywood, the first Academy Awards ceremony takes place.
June 7 » The Lateran Treaty is ratified, bringing Vatican City into existence.
July 27 » The Geneva Convention of 1929, dealing with treatment of prisoners-of-war, is signed by 53 nations.
August 24 » Second day of two-day Hebron massacre during the 1929 Palestine riots: Arab attacks on the Jewish community in Hebron in the British Mandate of Palestine, result in the death of 65–68 Jews; the remaining Jews are forced to flee the city.
October 7 » Photius II becomes Ecumenical Patriarch of Constantinople.
Day of death September 21, 1970
The temperature on September 21, 1970 was between 10.8 °C and 20.1 °C and averaged 14.8 °C. There was 2.0 hours of sunshine (16%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
March 4 » French submarine Eurydice explodes underwater, resulting in the loss of the entire 57-man crew.
April 26 » The Convention Establishing the World Intellectual Property Organization enters into force.
June 4 » Tonga gains independence from the United Kingdom.
August 24 » Vietnam War protesters bomb Sterling Hall at the University of Wisconsin–Madison, leading to an international manhunt for the perpetrators.
September 19 » Michael Eavis hosts the first Glastonbury Festival.
October 10 » Canada's October Crisis escalates when Quebec's vice-premier is kidnapped by members of the FLQ.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I11730.php : accessed February 27, 2026), "Willem Claij (1929-1970)".
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