February 1 » Shinhan Bank, the oldest bank in South Korea, opens in Seoul.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
December 6 » London becomes the world's first city to host licensed taxicabs.
Day of marriage January 30, 1920
The temperature on January 30, 1920 was between 2.8 °C and 8.6 °C and averaged 5.3 °C. There was 5.6 mm of rain. There was 0.6 hours of sunshine (7%). The average windspeed was 5 Bft (very strong wind) 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.
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 9 » Polish–Soviet War: The Polish army under General Edward Rydz-Śmigły celebrates its capture of Kiev with a victory parade on Khreshchatyk.
August 15 » Polish–Soviet War: Battle of Warsaw, so-called Miracle at the Vistula.
September 17 » The National Football League is organized as the American Professional Football Association in Canton, Ohio.
October 30 » The Communist Party of Australia is founded in Sydney.
December 3 » Following more than a month of Turkish–Armenian War, the Turkish dictated Treaty of Alexandropol is concluded.
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The Family tree Weerman publication was prepared by Hendrik Willem Jonker (contact is not possible).
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