The temperature on September 20, 1915 was between 2.9 °C and 16.6 °C and averaged 10.4 °C. There was 10.8 hours of sunshine (87%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
March 18 » World War I: During the Battle of Gallipoli, three battleships are sunk during a failed British and French naval attack on the Dardanelles.
May 6 » Babe Ruth, then a pitcher for the Boston Red Sox, hits his first major league home run.
May 24 » World War I: Italy declares war on Austria-Hungary, joining the conflict on the side of the Allies.
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.
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 death September 30, 1942
The temperature on September 30, 1942 was between 11.2 °C and 20.2 °C and averaged 15.2 °C. There was 0.3 mm of rain during 0.3 hours. There was 0.9 hours of sunshine (8%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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.
January 16 » Crash of TWA Flight 3, killing all 22 aboard, including film star Carole Lombard.
February 9 » World War II: Top United States military leaders hold their first formal meeting to discuss American military strategy in the war.
March 31 » World War II: Japanese forces invade Christmas Island, then a British possession.
August 26 » At Chortkiv, the Ukrainian police and German Schutzpolizei deport two thousand Jews to Bełżec extermination camp. Five hundred of the sick and children are murdered on the spot. This continued until the next day.
August 27 » First day of the Sarny Massacre.
November 11 » World War II: France's zone libre is occupied by German forces in Case Anton.
When copying data from this family tree, please include a reference to the origin: Frank Coster, "Family tree Coster", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_coster/I765.php : accessed January 2, 2026), "Alida Henriette Spier (1915-1942)".
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