The temperature on November 20, 1917 was between 7.8 °C and 10.9 °C and averaged 9.3 °C. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
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 31 » World War I: Germany announces that its U-boats will resume unrestricted submarine warfare after a two-year hiatus.
March 16 » World War I: A German auxiliary cruiser is sunk in the Action of 16 March 1917.
April 9 » World War I: The Battle of Arras: The battle begins with Canadian Corps executing a massive assault on Vimy Ridge.
April 16 » Vladimir Lenin returns to Petrograd, Russia, from exile in Switzerland.
June 7 » World War I: Battle of Messines: Allied soldiers detonate a series of mines underneath German trenches at Messines Ridge, killing 10,000 German troops.
December 7 » World War I: The United States declares war on Austria-Hungary.
Day of death June 26, 1959
The temperature on June 26, 1959 was between 15.7 °C and 24.4 °C and averaged 18.3 °C. There was 6.5 mm of rain during 1.2 hours. There was 2.6 hours of sunshine (16%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
January 30 » The forces of the Sultanate of Muscat occupy the last strongholds of the Imamate of Oman, Saiq and Shuraijah, marking the end of Jebel Akhdar War in Oman.
February 2 » Nine experienced ski hikers in the northern Ural Mountains in the Soviet Union die under mysterious circumstances.
February 6 » Jack Kilby of Texas Instruments files the first patent for an integrated circuit.
February 17 » Project Vanguard: Vanguard 2: The first weather satellite is launched to measure cloud-cover distribution.
June 14 » Disneyland Monorail System, the first daily operating monorail system in the Western Hemisphere, opens to the public in Anaheim, California.
September 12 » Bonanza premieres, the first regularly scheduled TV program presented in color.
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/I137534.php : accessed October 19, 2026), "Sjoerd van der Heide (1917-1959)".
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