The temperature on May 15, 1905 was between 6.7 °C and 17.2 °C and averaged 12.3 °C. There was 13.2 hours of sunshine (84%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 1, 1901 to August 16, 1905 the cabinet Kuijper, with Dr. A. Kuijper (AR) as prime minister.
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
January 22 » Bloody Sunday in Saint Petersburg, beginning of the 1905 revolution.
January 26 » The world's largest diamond ever, the Cullinan weighing 3,106.75 carats (0.621350kg), is found at the Premier Mine near Pretoria in South Africa.
April 17 » The Supreme Court of the United States decides Lochner v. New York, which holds that the "right to free contract" is implicit in the due process clause of the Fourteenth Amendment to the United States Constitution.
June 30 » Albert Einstein sends the article On the Electrodynamics of Moving Bodies, in which he introduces special relativity, for publication in Annalen der Physik.
November 21 » Albert Einstein's paper that leads to the mass–energy equivalence formula, E=mc², is published in the journal Annalen der Physik.
December 15 » The Pushkin House is established in Saint Petersburg, Russia, to preserve the cultural heritage of Alexander Pushkin.
Day of marriage May 6, 1933
The temperature on May 6, 1933 was between 9.8 °C and 18.2 °C and averaged 13.3 °C. There was 6.5 mm of rain during 3.7 hours. There was 0.9 hours of sunshine (6%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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.
In The Netherlands , there was from May 26, 1933 to July 31, 1935 the cabinet Colijn II, with Dr. H. Colijn (ARP) as prime minister.
January 24 » The 20th Amendment to the United States Constitution is ratified, changing the beginning and end of terms for all elected federal offices.
February 10 » In round 13 of a boxing match at New York City's Madison Square Garden, Primo Carnera knocks out Ernie Schaaf. Schaaf dies four days later.
March 15 » Austrian Chancellor Engelbert Dollfuss keeps members of the National Council from convening, starting the Austrofascist dictatorship.
April 1 » The recently elected Nazis under Julius Streicher organize a one-day boycott of all Jewish-owned businesses in Germany, ushering in a series of anti-Semitic acts.
April 24 » Nazi Germany begins its persecution of Jehovah's Witnesses by shutting down the Watch Tower Society office in Magdeburg.
May 15 » All military aviation organizations within or under the control of the RLM of Germany were officially merged in a covert manner to form its Wehrmacht military's air arm, the Luftwaffe.
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/I94078.php : accessed February 25, 2026), "Geesien Siersema (1905-)".
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