January 12 » The National Trust is founded in the United Kingdom.
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.
June 27 » The inaugural run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City, the first U.S. passenger train to use electric locomotives.
October 8 » Korean Empress Myeongseong is assassinated by Japanese infiltrators.
November 27 » At the Swedish–Norwegian Club in Paris, Alfred Nobel signs his last will and testament, setting aside his estate to establish the Nobel Prize after he dies.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
Day of marriage June 13, 1919
The temperature on June 13, 1919 was between 8.8 °C and 14.5 °C and averaged 12.0 °C. There was 2.6 mm of rain. The average windspeed was 5 Bft (very strong 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.
February 17 » The Ukrainian People's Republic asks Entente and the US for help fighting the Bolsheviks.
April 16 » Mohandas Gandhi organizes a day of "prayer and fasting" in response to the killing of Indian protesters in the Jallianwala Bagh massacre by the British colonial troops three days earlier.
April 16 » Polish–Soviet War: The Polish army launches the Vilna offensive to capture Vilnius in modern Lithuania.
June 7 » Sette Giugno: Nationalist riots break out in Valletta, the capital of Malta. British soldiers fire into the crowd, killing four people.
July 11 » The eight-hour day and free Sunday become law for workers in the Netherlands.
October 17 » RCA is incorporated as the Radio Corporation of America.
When copying data from this family tree, please include a reference to the origin: Michael Jacobs, "Family tree Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-michael-jacobs/I22594.php : accessed May 12, 2025), "Domenicus van Helden (1895-????)".
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