The temperature on January 6, 1920 was between -4.4 °C and 0.4 °C and averaged -1.7 °C. There was 6.8 hours of sunshine (86%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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 16 » Zeta Phi Beta Sorority Incorporated was founded on the campus of Howard University.
February 14 » The League of Women Voters is founded in Chicago.
May 7 » Morecambe Football Club was founded during a meeting at the West View Hotel on the town's promenade.
May 7 » Treaty of Moscow: Soviet Russia recognizes the independence of the Democratic Republic of Georgia only to invade the country six months later.
July 12 » The Soviet–Lithuanian Peace Treaty is signed, by which Soviet Russia recognizes the independence of Lithuania.
November 15 » The Free City of Danzig is established.
Day of death September 13, 1967
The temperature on September 13, 1967 was between 12.5 °C and 17.2 °C and averaged 14.4 °C. There was 8.8 mm of rain during 2.1 hours. There was -0.1 hours of sunshine (0%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
When copying data from this family tree, please include a reference to the origin: L. Roos, "Family tree Roos", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-roos/I449.php : accessed February 6, 2026), "Gerrit VADER (1920-1967)".
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