January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
April 2 » "Electric Theatre", the first full-time movie theater in the United States, opens in Los Angeles.
April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
May 17 » Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of marriage April 30, 1930
The temperature on April 30, 1930 was between 3.3 °C and 13.8 °C and averaged 9.1 °C. There was 13.1 hours of sunshine (88%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 3 » Communist Party of Vietnam is founded at a "Unification Conference" held in Kowloon, British Hong Kong.
March 13 » The news of the discovery of Pluto is announced by Lowell Observatory.
August 29 » The last 36 remaining inhabitants of St Kilda are voluntarily evacuated to other parts of Scotland.
September 6 » Democratically elected Argentine president Hipólito Yrigoyen is deposed in a military coup.
September 27 » Bobby Jones wins the (pre-Masters) Grand Slam of golf.
October 3 » The German Socialist Labour Party in Poland – Left is founded.
Day of death June 3, 1971
The temperature on June 3, 1971 was between 13.7 °C and 27.2 °C and averaged 20.5 °C. There was -0.1 mm of rain. There was 11.9 hours of sunshine (72%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I20697.php : accessed March 4, 2026), "Harmen Jan Hendrik van Dompselaar (1902-1971)".
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