The temperature on February 7, 1921 was between -1.3 °C and 0.5 °C and averaged -0.2 °C. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
February 21 » Constituent Assembly of the Democratic Republic of Georgia adopts the country's first constitution.
March 18 » The second Peace of Riga is signed between Poland and the Soviet Union.
June 15 » Bessie Coleman earns her pilot's license, becoming the first female pilot of African-American descent.
August 23 » British airship R-38 experiences structural failure over Hull in England and crashes in the Humber Estuary. Of her 49 British and American training crew, only four survive.
September 11 » Nahalal, the first moshav in Palestine, is settled as part of a Zionist plan of creating a Jewish state, later to be Israel.
December 6 » The Anglo-Irish Treaty is signed in London by British and Irish representatives.
Day of death May 6, 1925
The temperature on May 6, 1925 was between 4.9 °C and 15.1 °C and averaged 9.7 °C. There was 3.5 mm of rain. There was 8.0 hours of sunshine (53%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
In The Netherlands , there was from August 4, 1925 to March 8, 1926 the cabinet Colijn I, with Dr. H. Colijn (ARP) as prime minister.
January 5 » Nellie Tayloe Ross of Wyoming becomes the first female governor in the United States.
January 30 » The Government of Turkey expels Patriarch Constantine VI from Istanbul.
March 16 » An earthquake occurs in Yunnan, China.
March 21 » The Butler Act prohibits the teaching of human evolution in Tennessee.
April 4 » The Schutzstaffel (SS) is founded under Adolf Hitler's Nazi party in Germany.
September 3 » USSShenandoah, the United States' first American-built rigid airship, was destroyed in a squall line over Noble County, Ohio. Fourteen of her 42-man crew perished, including her commander, Zachary Lansdowne.
When copying data from this family tree, please include a reference to the origin: Henry van Niel, "Family tree Seijffer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-seijffer/R112.php : accessed February 1, 2026), "Willy Seijffer (1921-1925)".
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