January 31 » Czechoslav Trade Union Association is founded in Prague.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
Day of marriage May 19, 1917
The temperature on May 19, 1917 was between 11.0 °C and 20.6 °C and averaged 15.4 °C. There was 0.3 mm of rain. There was 3.4 hours of sunshine (21%). The average windspeed was 2 Bft (weak wind) and was prevailing from the ??. 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.
July 17 » King George V issues a Proclamation stating that the male line descendants of the British Royal Family will bear the surname Windsor.
September 14 » The Russian Empire is formally replaced by the Russian Republic.
October 12 » World War I: The First Battle of Passchendaele takes place resulting in the largest single-day loss of life in New Zealand history.
November 26 » The Manchester Guardian publishes the 1916 secret Sykes-Picot Agreement between the United Kingdom and France.
December 9 » World War I: Field Marshal Allenby captures Jerusalem, Palestine.
December 18 » The resolution containing the language of the Eighteenth Amendment to enact Prohibition is passed by the United States Congress.
Day of death April 8, 1957
The temperature on April 8, 1957 was between 1.1 °C and 9.8 °C and averaged 5.9 °C. There was 12.0 hours of sunshine (90%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
March 29 » The New York, Ontario and Western Railway makes its final run, the first major U.S. railroad to be abandoned in its entirety.
April 6 » Greek shipping tycoon Aristotle Onassis buys the Hellenic National Airlines (TAE) and founds Olympic Airlines.
June 10 » John Diefenbaker leads the Progressive Conservative Party of Canada to a stunning upset in the 1957 Canadian federal election, ending 22 years of Liberal Party government.
October 10 » U.S. President Eisenhower apologizes to Ghanaian finance minister Gbedemah after he is refused service in a Delaware restaurant.
October 14 » At least 81 people are killed in the most devastating flood in the history of the Spanish city of Valencia.
December 17 » The United States successfully launches the first Atlas intercontinental ballistic missile at Cape Canaveral, Florida.
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/I21031.php : accessed October 22, 2026), "Hermanus Steensma (1897-1957)".
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