The temperature on June 26, 1915 was between 10.5 °C and 20.4 °C and averaged 16.4 °C. There was 1.0 mm of rain. There was 6.1 hours of sunshine (36%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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 24 » World War I: British Grand Fleet battle cruisers under Vice-Admiral Sir David Beatty engage Rear-Admiral Franz von Hipper's battle cruisers in the Battle of Dogger Bank.
January 31 » World War I: Germany is the first to make large-scale use of poison gas in warfare in the Battle of Bolimów against Russia.
May 27 » HMS Princess Irene exploded and sank off Sheerness, Kent with the loss of 352 lives.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
August 6 » World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.
October 14 » World War I: Bulgaria joins the Central Powers.
Day of marriage June 6, 1936
The temperature on June 6, 1936 was between 9.2 °C and 20.7 °C and averaged 14.6 °C. There was 0.1 mm of rain during 0.2 hours. There was 13.0 hours of sunshine (79%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
March 5 » First flight of K5054, the first prototype Supermarine Spitfire advanced monoplane fighter aircraft in the United Kingdom.
March 16 » Warmer-than-normal temperatures rapidly melt snow and ice on the upper Allegheny and Monongahela rivers, leading to a major flood in Pittsburgh.
April 5 » Tupelo–Gainesville tornado outbreak: An F5 tornado kills 233 in Tupelo, Mississippi.
December 10 » Abdication Crisis: Edward VIII signs the Instrument of Abdication.
Day of death February 12, 1945
The temperature on February 12, 1945 was between 0.7 °C and 8.8 °C and averaged 3.8 °C. There was 6.3 mm of rain during 7.8 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
April 17 » Historian Tran Trong Kim is appointed the Prime Minister of the Empire of Vietnam.
May 5 » World War II: A Fu-Go balloon bomb launched by the Japanese Army kills six people near Bly, Oregon.
May 7 » World War II: General Alfred Jodl signs unconditional surrender terms at Reims, France, ending Germany's participation in the war. The document takes effect the next day.
May 8 » The Halifax riot starts when thousands of civilians and servicemen rampage through Halifax, Nova Scotia.
October 18 » Argentine military officer and politician Juan Perón marries actress Eva Duarte.
November 1 » The official North Korean newspaper, Rodong Sinmun, is first published under the name Chongro.
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/I138583.php : accessed October 5, 2026), "Sjoerd Helmhout (1915-1945)".
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