The temperature on April 11, 1915 was between 0.7 °C and 10.2 °C and averaged 6.2 °C. There was 0.2 mm of rain. There was 2.9 hours of sunshine (21%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. 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 18 » Japan issues the "Twenty-One Demands" to the Republic of China in a bid to increase its power in East Asia.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
May 22 » Three trains collide in the Quintinshill rail disaster near Gretna Green, Scotland, killing 227 people and injuring 246.
May 23 » World War I: Italy joins the Allies, fulfilling its part of the Treaty of London.
July 7 » Colombo Town Guard officer Henry Pedris is executed in British Ceylon for allegedly inciting persecution of Muslims.
July 7 » The First Battle of the Isonzo comes to an end.
Day of marriage June 16, 1943
The temperature on June 16, 1943 was between 6.1 °C and 15.6 °C and averaged 10.7 °C. There was 5.1 mm of rain during 2.3 hours. There was 4.4 hours of sunshine (26%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
February 14 » World War II: Tunisia Campaign: General Hans-Jürgen von Arnim's Fifth Panzer Army launches a concerted attack against Allied positions in Tunisia.
April 7 » The Holocaust in Ukraine: In Terebovlia, Germans order 1,100 Jews to undress and march through the city to the nearby village of Plebanivka, where they are shot and buried in ditches.
July 4 » World War II: The Battle of Kursk, the largest full-scale battle in history and the world's largest tank battle, begins in the village of Prokhorovka.
August 17 » World War II: The Royal Air Force begins Operation Hydra, the first air raid of the Operation Crossbow strategic bombing campaign against Germany's V-weapon program.
October 8 » World War II: Around 30 civilians are executed by Friedrich Schubert's paramilitary group in Kallikratis, Crete.
October 19 » Streptomycin, the first antibiotic remedy for tuberculosis, is isolated by researchers at Rutgers University.
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/I190382.php : accessed December 31, 2025), "Sietske van der Laan (1915-)".
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