The temperature on October 10, 1914 was between 5.1 °C and 13.1 °C and averaged 9.9 °C. There was 0.2 hours of sunshine (2%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east-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.
August 5 » In Cleveland, Ohio, the first electric traffic light is installed.
August 9 » Start of the Battle of Mulhouse, part of a French attempt to recover the province of Alsace and the first French offensive of World War I.
August 23 » World War I: Japan declares war on Germany.
September 17 » World War I: The Race to the Sea begins.
November 2 » World War I: The Russian Empire declares war on the Ottoman Empire and the Dardanelles are subsequently closed.
November 15 » Harry Turner becomes the first player to die from game-related injuries in the "Ohio League", the direct predecessor to the National Football League.
Day of marriage May 21, 1943
The temperature on May 21, 1943 was between 10.0 °C and 24.4 °C and averaged 17.1 °C. There was 11.3 hours of sunshine (71%). The average windspeed was 2 Bft (weak wind) and was prevailing from the 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.
April 19 » World War II: In Poland, the Warsaw Ghetto Uprising begins, after German troops enter the Warsaw Ghetto to round up the remaining Jews.
May 22 » Joseph Stalin disbands the Comintern.
July 10 » World War II: Operation Husky begins in Sicily.
July 24 » World War II: Operation Gomorrah begins: British and Canadian aeroplanes bomb Hamburg by night, and American planes bomb the city by day. By the end of the operation in November, 9,000 tons of explosives will have killed more than 30,000 people and destroyed 280,000 buildings.
August 2 » The Holocaust: Jewish prisoners stage a revolt at Treblinka, one of the deadliest of Nazi death camps where approximately 900,000 persons were murdered in less than 18 months.
October 17 » The Burma Railway (Burma–Thailand Railway) is completed.
When copying data from this family tree, please include a reference to the origin: Sim Mostert, "Genealogy Pot en Smit", database, Genealogy Online (https://www.genealogieonline.nl/genealogie_pot_smit/I4279.php : accessed January 2, 2026), "IVO OPSTELTEN (1914-)".
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