February 1 » Fountains Valley, Pretoria, the oldest nature reserve in Africa, is proclaimed by President Paul Kruger.
April 8 » In Pollock v. Farmers' Loan & Trust Co. the Supreme Court of the United States declares unapportioned income tax to be unconstitutional.
May 25 » Playwright, poet and novelist Oscar Wilde is convicted of "committing acts of gross indecency with other male persons" and sentenced to serve two years in prison.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
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 January 15, 1920
The temperature on January 15, 1920 was between 0.7 °C and 6.3 °C and averaged 3.6 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the 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.
April 25 » At the San Remo conference, the principal Allied Powers of World War I adopt a resolution to determine the allocation of Class "A" League of Nations mandates for administration of the former Ottoman-ruled lands of the Middle East.
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
June 4 » Hungary loses 71% of its territory and 63% of its population when the Treaty of Trianon is signed in Paris.
July 11 » In the East Prussian plebiscite the local populace decides to remain with Weimar Germany.
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.
When copying data from this family tree, please include a reference to the origin: Peter Menting, "Family tree Menting", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-menting/I23630.php : accessed January 8, 2026), "Petrus Johannes Raijmann (1895-????)".
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