April 25 » New York becomes the first U.S. state to require automobile license plates.
August 10 » The U.S. Steel recognition strike by the Amalgamated Association of Iron and Steel Workers begins.
September 6 » Leon Czolgosz, an unemployed anarchist, shoots and fatally wounds US President William McKinley at the Pan-American Exposition in Buffalo, New York.
September 17 » Second Boer War: Boers capture a squadron of the 17th Lancers at the Battle of Elands River.
December 12 » Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
Day of marriage February 14, 1920
The temperature on February 14, 1920 was between -0.1 °C and 8.6 °C and averaged 6.4 °C. There was 1.7 mm of rain. There was 0.3 hours of sunshine (3%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 2 » The second Palmer Raid, ordered by the US Department of Justice, results in 6,000 suspected communists and anarchists being arrested and held without trial.
January 19 » The United States Senate votes against joining the League of Nations.
June 4 » Hungary loses 71% of its territory and 63% of its population when the Treaty of Trianon is signed in Paris.
July 29 » Construction of the Link River Dam begins as part of the Klamath Reclamation Project.
August 10 » World War I: Ottoman sultan Mehmed VI's representatives sign the Treaty of Sèvres that divides up the Ottoman Empire between the Allies.
September 1 » The Fountain of Time opens as a tribute to the 100 years of peace between the United States and Great Britain following the Treaty of Ghent.
Day of death March 18, 1990
The temperature on March 18, 1990 was between 6.2 °C and 21.4 °C and averaged 13.4 °C. There was 10.4 hours of sunshine (87%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
April 4 » The current flag of Hong Kong is adopted for post-colonial Hong Kong during the Third Session of the Seventh National People's Congress.
May 29 » The Russian parliament elects Boris Yeltsin as president of the Russian Soviet Federative Socialist Republic.
June 1 » Cold War: George H. W. Bush and Mikhail Gorbachev sign a treaty to end chemical weapon production.
June 20 » The 7.4 Mw Manjil–Rudbar earthquake affects northern Iran with a maximum Mercalli intensity of X (Extreme), killing 35,000–50,000, and injuring 60,000–105,000.
November 2 » British Satellite Broadcasting and Sky Television plc merge to form BSkyB as a result of massive losses.
November 12 » Crown Prince Akihito is formally installed as Emperor Akihito of Japan, becoming the 125th Japanese monarch.
When copying data from this family tree, please include a reference to the origin: Dirk Zwinderman, "Family tree Zwinderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-zwinderman/I3410.php : accessed February 6, 2026), "Dorothea Modderman (1901-1990)".
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