February 20 » The legislature of Hawaii Territory convenes for the first time.
March 2 » United States Steel Corporation is founded as a result of a merger between Carnegie Steel Company and Federal Steel Company which became the first corporation in the world with a market capital over $1 billion.
May 3 » The Great Fire of 1901 begins in Jacksonville, Florida.
June 17 » The College Board introduces its first standardized test, the forerunner to the SAT.
October 29 » Leon Czolgosz, the assassin of U.S. President William McKinley, is executed by electrocution.
Day of marriage July 1, 1920
The temperature on July 1, 1920 was between 8.6 °C and 21.3 °C and averaged 15.5 °C. There was 0.5 mm of rain. There was 3.0 hours of sunshine (18%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. 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 10 » The Treaty of Versailles takes effect, officially ending World War I.
January 13 » The Reichstag Bloodbath of January 13, 1920, the bloodiest demonstration in German history.
January 17 » Alcohol Prohibition begins in the United States as the Volstead Act goes into effect.
August 18 » The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
November 7 » Patriarch Tikhon of Moscow issues a decree that leads to the formation of the Russian Orthodox Church Outside Russia.
December 11 » Irish War of Independence: In retaliation for a recent IRA ambush, British forces burn and loot numerous buildings in Cork city. Many civilians report being beaten, shot at, robbed and verbally abused by British forces.
When copying data from this family tree, please include a reference to the origin: H. van Dalen, "Family tree Van Dalen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-dalen/I3454.php : accessed January 18, 2026), "Willem Timmer (1901-)".
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