The temperature on April 11, 1889 was about 9.5 °C. The air pressure was 3 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 89%. Source: KNMI
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
March 31 » The Eiffel Tower is officially opened.
June 26 » Bangui is founded by Albert Dolisie and Alfred Uzac in what was then the upper reaches of the French Congo.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
November 8 » Montana is admitted as the 41st U.S. state.
November 23 » The first jukebox goes into operation at the Palais Royale Saloon in San Francisco.
Day of marriage March 17, 1917
The temperature on March 17, 1917 was between 3.2 °C and 10.3 °C and averaged 6.1 °C. There was 0.2 mm of rain. There was 8.6 hours of sunshine (72%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
March 8 » International Women's Day protests in St. Petersburg mark the beginning of the February Revolution (February 23rd in the Julian calendar).
March 11 » World War I: Mesopotamian campaign: Baghdad falls to Anglo-Indian forces commanded by General Stanley Maude.
June 28 » World War I: Greece joins the Allied powers.
September 14 » The Russian Empire is formally replaced by the Russian Republic.
November 7 » World War I: Third Battle of Gaza ends: British forces capture Gaza from the Ottoman Empire.
November 20 » World War I: Battle of Cambrai begins: British forces make early progress in an attack on German positions but are later pushed back.
Day of death September 14, 1961
The temperature on September 14, 1961 was between 12.7 °C and 18.5 °C and averaged 15.3 °C. There was 4.6 mm of rain during 1.7 hours. There was 2.6 hours of sunshine (20%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 30 » The Single Convention on Narcotic Drugs is signed in New York City.
April 17 » Bay of Pigs Invasion: A group of Cuban exiles financed and trained by the CIA lands at the Bay of Pigs in Cuba with the aim of ousting Fidel Castro.
June 4 » Cold War: In the Vienna summit, the Soviet premier Nikita Khrushchev sparks the Berlin Crisis by threatening to sign a separate peace treaty with East Germany and ending American, British and French access to East Berlin.
July 25 » Cold War: In a speech John F. Kennedy emphasizes that any attack on Berlin is an attack on NATO.
August 21 » American country music singer Patsy Cline returns to record producer Owen Bradley's studio in Nashville, Tennessee to record her vocals to Willie Nelson's "Crazy", which would become her signature song.
October 1 » The United States Defense Intelligence Agency is formed, becoming the country's first centralized military intelligence organization.
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/I67792.php : accessed December 26, 2025), "Jan Ettema (1889-1961)".
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