The temperature on April 27, 1905 was between 0.7 °C and 11.4 °C and averaged 7.5 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
May 15 » Las Vegas is founded when 110 acres (0.45km), in what later would become downtown, are auctioned off.
May 27 » Russo-Japanese War: The Battle of Tsushima begins.
October 30 » Czar Nicholas II issues the October Manifesto, granting the Russian peoples basic civil liberties and the right to form a duma. (October 17 in the Julian calendar)
November 18 » Prince Carl of Denmark becomes King Haakon VII of Norway.
November 21 » Albert Einstein's paper that leads to the mass–energy equivalence formula, E=mc², is published in the journal Annalen der Physik.
November 28 » Irish nationalist Arthur Griffith founds Sinn Féin as a political party with the main aim of establishing a dual monarchy in Ireland.
Day of marriage August 8, 1928
The temperature on August 8, 1928 was between 13.0 °C and 20.3 °C and averaged 16.4 °C. There was 6.4 mm of rain. There was 2.5 hours of sunshine (17%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
March 12 » In California, the St. Francis Dam fails; the resulting floods kill 431 people.
May 15 » Walt Disney character Mickey Mouse premieres in his first cartoon, "Plane Crazy".
October 10 » Chiang Kai-shek becomes Chairman of the Republic of China.
October 22 » Phi Sigma Alpha fraternity is founded at the University of Puerto Rico.
December 13 » George Gershwin's An American in Paris is first performed.
Day of death June 17, 1963
The temperature on June 17, 1963 was between 12.8 °C and 17.2 °C and averaged 14.8 °C. There was 2.3 mm of rain during 6.2 hours. There was -0.1 hours of sunshine (0%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
January 22 » The Élysée Treaty of cooperation between France and Germany is signed by Charles de Gaulle and Konrad Adenauer.
February 8 » Travel, financial and commercial transactions by United States citizens to Cuba are made illegal by the John F. Kennedy administration.
June 17 » The United States Supreme Court rules 8–1 in Abington School District v. Schempp against requiring the reciting of Bible verses and the Lord's Prayer in public schools.
July 1 » The British Government admits that former diplomat Kim Philby had worked as a Soviet agent.
September 4 » Swissair Flight 306 crashes near Dürrenäsch, Switzerland, killing all 80 people on board.
October 4 » Hurricane Flora kills 6,000 in Cuba and Haiti.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I695.php : accessed January 20, 2026), "Jantsje Bakker (1905-1963)".
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