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.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage September 6, 1919
The temperature on September 6, 1919 was between 12.6 °C and 27.0 °C and averaged 17.7 °C. There was 8.0 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
February 6 » The five-day Seattle General Strike begins, as more than 65,000 workers in the city of Seattle, Washington, walk off the job.
February 11 » Friedrich Ebert (SPD), is elected President of Germany.
May 27 » The NC-4 aircraft arrives in Lisbon after completing the first transatlantic flight.
June 7 » Sette Giugno: Nationalist riots break out in Valletta, the capital of Malta. British soldiers fire into the crowd, killing four people.
June 14 » John Alcock and Arthur Whitten Brown depart from St. John's, Newfoundland on the first nonstop transatlantic flight.
December 3 » After nearly 20 years of planning and construction, including two collapses causing 89 deaths, the Quebec Bridge opens to traffic.
Day of death September 12, 1925
The temperature on September 12, 1925 was between 6.4 °C and 17.9 °C and averaged 11.8 °C. There was 1.3 mm of rain. There was 7.8 hours of sunshine (60%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
January 3 » Benito Mussolini announces he is taking dictatorial powers over Italy.
February 21 » The New Yorker publishes its first issue.
April 30 » Automaker Dodge Brothers, Inc is sold to Dillon, Read & Co. for US$146million plus $50million for charity.
July 10 » Scopes Trial: In Dayton, Tennessee, the so-called "Monkey Trial" begins of John T. Scopes, a young high school science teacher accused of teaching evolution in violation of the Butler Act.
October 30 » John Logie Baird creates Britain's first television transmitter.
November 28 » The Grand Ole Opry begins broadcasting in Nashville, Tennessee, as the WSM Barn Dance.
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/I186649.php : accessed December 29, 2025), "Grietje Wiersma (1897-1925)".
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