January 13 » First Italo-Ethiopian War: the war's opening battle, the Battle of Coatit, occurs; it is an Italian victory.
March 15 » Heian Shrine is founded.
April 8 » In Pollock v. Farmers' Loan & Trust Co. the Supreme Court of the United States declares unapportioned income tax to be unconstitutional.
May 7 » In Saint Petersburg, Russian scientist Alexander Stepanovich Popov demonstrates to the Russian Physical and Chemical Society his invention, the Popov lightning detector—a primitive radio receiver. In some parts of the former Soviet Union the anniversary of this day is celebrated as Radio Day.
September 3 » John Brallier becomes the first openly professional American football player, when he was paid US$10 by David Berry, to play for the Latrobe Athletic Association in a 12-0 win over the Jeanette Athletic Association.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
Day of marriage March 18, 1920
The temperature on March 18, 1920 was between 4.9 °C and 11.4 °C and averaged 8.4 °C. There was 0.3 hours of sunshine (3%). The average windspeed was 4 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.
February 24 » The Nazi Party (NSDAP) was founded by Adolf Hitler in the Hofbräuhaus beer hall in Munich, Germany
March 28 » Palm Sunday tornado outbreak of 1920 affects the Great Lakes region and Deep South states.
August 18 » The Nineteenth Amendment to the United States Constitution is ratified, guaranteeing women's suffrage.
September 7 » Two newly purchased Savoia flying boats crash in the Swiss Alps en route to Finland where they would serve with the Finnish Air Force, killing both crews.
November 16 » Qantas, Australia's national airline, is founded as Queensland and Northern Territory Aerial Services Limited.
December 22 » The GOELRO economic development plan is adopted by the 8th Congress of Soviets of the Russian SFSR.
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/I85952.php : accessed October 18, 2026), "Jan Bansema (1895-????)".
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