January 13 » First Italo-Ethiopian War: the war's opening battle, the Battle of Coatit, occurs; it is an Italian victory.
February 9 » William G. Morgan creates a game called Mintonette, which soon comes to be referred to as volleyball.
March 22 » Before the Société pour L'Encouragement à l'Industrie, brothers Auguste and Louis Lumière demonstrate movie film technology publicly for the first time.
April 8 » In Pollock v. Farmers' Loan & Trust Co. the Supreme Court of the United States declares unapportioned income tax to be unconstitutional.
June 11 » Paris–Bordeaux–Paris, sometimes called the first automobile race in history or the "first motor race", takes place.
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
Day of marriage June 7, 1919
The temperature on June 7, 1919 was between 10.0 °C and 24.5 °C and averaged 17.7 °C. There was 0.1 mm of rain. There was 10.5 hours of sunshine (63%). The average windspeed was 2 Bft (weak wind) 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.
April 13 » Jallianwala Bagh massacre: British Indian Army troops lead by Brigadier-General Reginald Dyer killed approx 379-1000 unarmed demonstrators including men and women in Amritsar, India; and approximately 1,500 injured.
May 15 » The Winnipeg general strike begins. By 11:00, almost the whole working population of Winnipeg had walked off the job.
June 23 » Estonian War of Independence: The decisive defeat of the Baltische Landeswehr in the Battle of Cēsis; this date is celebrated as Victory Day in Estonia.
July 6 » The British dirigible R34 lands in New York, completing the first crossing of the Atlantic Ocean by an airship.
July 13 » The British airship R34 lands in Norfolk, England, completing the first airship return journey across the Atlantic in 182 hours of flight.
November 11 » Latvian forces defeat the West Russian Volunteer Army at Riga in the Latvian War of Independence.
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/I78551.php : accessed October 20, 2026), "Annechiena Alberdina de Groot (1895-????)".
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