The temperature on April 30, 1880 was about 11.1 °C. The air pressure was 8 kgf/m2 and came mainly from the north-northeast. The airpressure was 77 cm mercury. The atmospheric humidity was 46%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
February 13 » Thomas Edison observes Thermionic emission.
May 11 » Seven people are killed in the Mussel Slough Tragedy, a gun battle in California.
May 13 » In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
September 1 » The army of Mohammad Ayub Khan is routed by the British at the Battle of Kandahar, ending the Second Anglo-Afghan War.
September 16 » The Cornell Daily Sun prints its first issue in Ithaca, New York. The Sun is the United States' oldest, continuously-independent college daily.
Day of marriage April 22, 1915
The temperature on April 22, 1915 was between -0.8 °C and 11.3 °C and averaged 5.2 °C. There was 9.6 hours of sunshine (67%). The average windspeed was 2 Bft (weak wind) 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.
May 9 » World War I: Second Battle of Artois between German and French forces.
May 27 » HMS Princess Irene exploded and sank off Sheerness, Kent with the loss of 352 lives.
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.
July 16 » Henry James becomes a British citizen to highlight his commitment to Britain during the first World War.
August 15 » A story in New York World newspaper reveals that the Imperial German government had purchased excess phenol from Thomas Edison that could be used to make explosives for the war effort and diverted it to Bayer for aspirin production.
September 15 » The Empire Picture Theatre (now The New Empire Cinema), the oldest running cinema in mainland Australia, opens in Bowral, New South Wales.
Day of death August 1, 1943
The temperature on August 1, 1943 was between 16.3 °C and 27.9 °C and averaged 21.7 °C. There was 4.9 hours of sunshine (32%). 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.
January 18 » Warsaw Ghetto Uprising: The first uprising of Jews in the Warsaw Ghetto.
May 13 » World War II: Operations Vulcan and Strike force the surrender of the last Axis troops in Tunisia.
July 19 » World War II: Rome is heavily bombed by more than 500 Allied aircraft, inflicting thousands of casualties.
October 17 » The Burma Railway (Burma–Thailand Railway) is completed.
November 3 » World War II: Five hundred aircraft of the U.S. 8th Air Force devastate Wilhelmshaven harbor in Germany.
December 8 » World War II: The German 117th Jäger Division destroys the monastery of Mega Spilaio in Greece and executes 22 monks and visitors as part of reprisals that culminated a few days later with the Massacre of Kalavryta.
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/I105167.php : accessed December 25, 2025), "Trijntje Sytema (1880-1943)".
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