The temperature on September 30, 1915 was between 2.1 °C and 14.8 °C and averaged 8.2 °C. There was 5.2 hours of sunshine (44%). The average windspeed was 2 Bft (weak wind) 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.
May 6 » Babe Ruth, then a pitcher for the Boston Red Sox, hits his first major league home run.
May 7 » The Republic of China accedes to 13 of the 21 Demands, extending the Empire of Japan's control over Manchuria and the Chinese economy.
May 22 » Three trains collide in the Quintinshill rail disaster near Gretna Green, Scotland, killing 227 people and injuring 246.
June 21 » The U.S. Supreme Court hands down its decision in Guinn v. United States 238 US 347 1915, striking down Oklahoma grandfather clause legislation which had the effect of denying the right to vote to blacks.
September 15 » The Empire Picture Theatre (now The New Empire Cinema), the oldest running cinema in mainland Australia, opens in Bowral, New South Wales.
September 30 » World War I: Radoje Ljutovac becomes the first soldier in history to shoot down an enemy aircraft with ground-to-air fire.
Day of marriage June 5, 1941
The temperature on June 5, 1941 was between 10.7 °C and 23.7 °C and averaged 17.8 °C. There was 10.8 hours of sunshine (65%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
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.
June 3 » World War II: The Wehrmacht razes the Greek village of Kandanos to the ground and murders 180 of its inhabitants.
June 27 » Romanian authorities launch one of the most violent pogroms in Jewish history in the city of Iași, resulting in the murder of at least 13,266 Jews.
July 4 » Nazi crimes against the Polish nation: Nazi troops massacre Polish scientists and writers in the captured Ukrainian city of Lviv.
September 28 » Ted Williams achieves a .406 batting average for the season, and becomes the last major league baseball player to bat .400 or better.
December 6 » World War II: The United Kingdom and Canada declare war on Finland in support of the Soviet Union during the Continuation War. Camp X opens in Canada to begin training Allied Secret Agents for the War.
December 24 » World War II: Benghazi is conquered by the British Eighth Army.
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/I187426.php : accessed December 30, 2025), "Willem Koops (1915-)".
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