January 31 » Czechoslav Trade Union Association is founded in Prague.
April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
Day of marriage December 29, 1917
The average temperature on December 29, 1917 was 1.0 °C. There was 0.2 mm of rain. The average windspeed was 3 Bft (moderate breeze) 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.
January 11 » The Kingsland munitions factory explosion occurs as a result of sabotage.
April 12 » World War I: Canadian forces successfully complete the taking of Vimy Ridge from the Germans.
May 26 » Several powerful tornadoes rip through Illinois, including the city of Mattoon.
July 25 » Sir Robert Borden introduces the first income tax in Canada as a "temporary" measure (lowest bracket is 4% and highest is 25%).
November 2 » The Military Revolutionary Committee of the Petrograd Soviet, in charge of preparation and carrying out the Russian Revolution, holds its first meeting.
November 7 » The Gregorian calendar date of the October Revolution, which gets its name from the Julian calendar date of 25 October. On this date in 1917, the Bolsheviks storm the Winter Palace.
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/I21612.php : accessed February 11, 2026), "Tjitske Tabak (1897-????)".
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