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 19 » German strategic bombing during World War I: German zeppelins bomb the towns of Great Yarmouth and King's Lynn in the United Kingdom killing at least 20 people, in the first major aerial bombardment of a civilian target.
January 22 » Over 600 people are killed in Guadalajara, Mexico, when a train plunges off the tracks into a deep canyon.
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.
February 8 » D. W. Griffith's controversial film The Birth of a Nation premieres in Los Angeles.
March 27 » Typhoid Mary, the first healthy carrier of disease ever identified in the United States is put in quarantine for the second time, where she would remain for the rest of her life.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
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 16 » World War II: In the early phases of the Third Battle of Kharkov, Red Army troops re-enter the city.
March 2 » World War II: Allied aircraft defeat a Japanese attempt to ship troops to New Guinea.
April 18 » World War II: Operation Vengeance, Admiral Isoroku Yamamoto is killed when his aircraft is shot down by U.S. fighters over Bougainville Island.
June 19 » The Philadelphia Eagles and Pittsburgh Steelers in the NFL merge for one season due to player shortages caused by World War II.
June 20 » The Detroit race riot breaks out and continues for three more days.
September 12 » World War II: Benito Mussolini is rescued from house arrest by German commando forces led by Otto Skorzeny.
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 February 16, 2026), "Sietske van der Laan (1915-)".
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