The temperature on May 4, 1913 was between 5.4 °C and 15.8 °C and averaged 9.6 °C. There was 7.2 mm of rain. There was 4.0 hours of sunshine (27%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
In The Netherlands , there was from February 12, 1908 to August 29, 1913 the cabinet Heemskerk, with Mr. Th. Heemskerk (AR) as prime minister.
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 18 » First Balkan War: A Greek flotilla defeats the Ottoman Navy in the Naval Battle of Lemnos, securing the islands of the Northern Aegean Sea for Greece.
February 9 » A group of meteors is visible across much of the eastern seaboard of North and South America, leading astronomers to conclude the source had been a small, short-lived natural satellite of the Earth.
February 20 » King O'Malley drives in the first survey peg to mark commencement of work on the construction of Canberra.
June 25 » American Civil War veterans begin arriving at the Great Reunion of 1913.
August 28 » Queen Wilhelmina opens the Peace Palace in The Hague.
October 10 » U.S. President Wilson triggers the explosion of the Gamboa Dike, completing major construction on the Panama Canal.
Day of marriage July 21, 1937
The temperature on July 21, 1937 was between 13.0 °C and 22.3 °C and averaged 17.3 °C. There was 5.5 mm of rain during 2.4 hours. There was 1.5 hours of sunshine (9%). The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
May 7 » Spanish Civil War: The German Condor Legion, equipped with Heinkel He 51 biplanes, arrives in Spain to assist Francisco Franco's forces.
May 30 » Memorial Day massacre: Chicago police shoot and kill ten labor demonstrators.
August 1 » Josip Broz Tito reads the resolution "Manifesto of constitutional congress of KPH" to the constitutive congress of KPH (Croatian Communist Party) in woods near Samobor.
August 24 » Spanish Civil War: the Basque Army surrenders to the Italian Corpo Truppe Volontarie following the Santoña Agreement.
September 21 » J. R. R. Tolkien's The Hobbit is published.
October 2 » Rafael Trujillo orders the execution of Haitians living in the northwestern region of the Dominican Republic.
Day of death December 20, 1966
The temperature on December 20, 1966 was between 2.3 °C and 9.6 °C and averaged 5.7 °C. There was 8.5 mm of rain during 4.8 hours. There was 2.4 hours of sunshine (31%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
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/I188699.php : accessed February 12, 2026), "Sietze Venema (1913-1966)".
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