June 13 » Yukon Territory is formed, with Dawson chosen as its capital.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
August 25 » Seven hundred Greek civilians, 17 British guards and the British Consul of Crete are killed by a Turkish mob in Heraklion, Greece.
September 18 » The Fashoda Incident triggers the last war scare between Britain and France.
October 1 » The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
October 14 » The steam ship SSMohegan sinks near the Lizard peninsula, Cornwall, killing 106.
Day of marriage March 2, 1917
The temperature on March 2, 1917 was between -0.2 °C and 2.3 °C and averaged 1.2 °C. There was 0.3 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. 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.
February 3 » First World War: The American entry into World War I begins when diplomatic relations with Germany are severed due to its unrestricted submarine warfare.
February 23 » First demonstrations in Saint Petersburg, Russia. The beginning of the February Revolution (March 8 in the Gregorian calendar).
March 4 » Jeannette Rankin of Montana becomes the first female member of the United States House of Representatives.
July 6 » World War I: Arabian troops led by T. E. Lawrence ("Lawrence of Arabia") and Auda ibu Tayi capture Aqaba from the Ottoman Empire during the Arab Revolt.
July 20 » World War I: The Corfu Declaration, which leads to the creation of the post-war Kingdom of Yugoslavia, is signed by the Yugoslav Committee and Kingdom of Serbia.
December 18 » The resolution containing the language of the Eighteenth Amendment to enact Prohibition is passed by the United States Congress.
Day of death July 14, 1921
The temperature on July 14, 1921 was between 7.4 °C and 20.4 °C and averaged 14.6 °C. There was 12.6 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 9 » Greco-Turkish War: The First Battle of İnönü, the first battle of the war, begins near Eskişehir in Anatolia.
March 1 » Following mass protests in Petrograd demanding greater freedom in the RSFSR, the Kronstadt rebellion began, with sailors and citizens taking up arms against the Bolsheviks.
March 24 » The 1921 Women's Olympiad begins in Monte Carlo, first international women's sports event.
September 7 » In Atlantic City, New Jersey, the first Miss America Pageant, a two-day event, is held.
October 26 » The Chicago Theatre opens.
October 29 » The Harvard University football team loses to Centre College, ending a 25-game winning streak. This is considered one of the biggest upsets in college football.
When copying data from this family tree, please include a reference to the origin: Joop Klavers, "Family tree Klavers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_klavers/I18328.php : accessed February 17, 2026), "Hendrik van der Sleen (1898-1921)".
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