February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
Day of marriage September 25, 1919
The temperature on September 25, 1919 was between 11.9 °C and 15.6 °C and averaged 14.1 °C. There was 1.0 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 18 » World War I: The Paris Peace Conference opens in Versailles, France.
February 6 » The American Legion is founded.
March 2 » The first Communist International meets in Moscow.
July 11 » The eight-hour day and free Sunday become law for workers in the Netherlands.
September 18 » Fritz Pollard becomes the first African American to play professional football for a major team, the Akron Pros.
September 18 » The Netherlands gives women the right to vote.
Day of death December 11, 1943
The temperature on December 11, 1943 was between -1.3 °C and 1.2 °C and averaged 0.2 °C. There was 2.9 hours of sunshine (37%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. 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 17 » World War II: Greek submarine Papanikolis captures the 200-ton sailing vessel Agios Stefanos and mans her with part of her crew.
February 18 » World War II: The Nazis arrest the members of the White Rose movement.
April 13 » World War II: The discovery of mass graves of Polish prisoners of war killed by Soviet forces in the Katyń Forest Massacre is announced, causing a diplomatic rift between the Polish government-in-exile in London and the Soviet Union, which denies responsibility.
April 30 » World War II: The British submarine HMSSeraph surfaces near Huelva to cast adrift a dead man dressed as a courier and carrying false invasion plans.
July 5 » World War II: An Allied invasion fleet sails for Sicily (Operation Husky, July 10, 1943).
December 28 » World War II: After eight days of brutal house-to-house fighting, the Battle of Ortona concludes with the victory of the 1st Canadian Infantry Division over the German 1st Parachute Division and the capture of the Italian town of Ortona.
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/I137154.php : accessed December 27, 2025), "Tietje Sytsma (1897-1943)".
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