The temperature on April 21, 1909 was between 4.5 °C and 12.6 °C and averaged 8.5 °C. There was 3.4 hours of sunshine (24%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
February 26 » Kinemacolor, the first successful color motion picture process, is first shown to the general public at the Palace Theatre in London.
April 14 » A massacre is organized by the Ottoman Empire against the Armenian population of Cilicia.
April 18 » Joan of Arc is beatified in Rome.
September 20 » The South Africa Act 1909 creates the Union of South Africa from the British Colonies from four smaller colonies.
October 16 » William Howard Taft and Porfirio Díaz hold the first summit between a U.S. and a Mexican president. They narrowly escape assassination.
December 4 » In Canadian football, the First Grey Cup game is played. The University of Toronto Varsity Blues defeat the Toronto Parkdale Canoe Club, 26–6.
Day of marriage August 31, 1934
The temperature on August 31, 1934 was between 4.5 °C and 16.0 °C and averaged 10.1 °C. There was 1.1 mm of rain during 0.3 hours. There was 1.1 hours of sunshine (8%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 1 » A "Law for the Prevention of Genetically Diseased Offspring" comes into effect in Nazi Germany.
February 23 » Leopold III becomes King of Belgium.
April 12 » The U.S. Auto-Lite strike begins, culminating in a five-day melee between Ohio National Guard troops and 6,000 strikers and picketers.
May 23 » The Auto-Lite strike culminates in the "Battle of Toledo", a five-day melée between 1,300 troops of the Ohio National Guard and 6,000 picketers.
November 11 » The Shrine of Remembrance in Melbourne, Australia is opened.
December 11 » Bill Wilson, co-founder of Alcoholics Anonymous, takes his last drink and enters treatment for the final time.
Day of death December 21, 1980
The temperature on December 21, 1980 was between 0.3 °C and 4.3 °C and averaged 2.5 °C. There was 4.4 mm of rain during 2.5 hours. The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
April 24 » Eight U.S. servicemen die in Operation Eagle Claw as they attempt to end the Iran hostage crisis.
May 17 » On the eve of presidential elections, Maoist guerrilla group Shining Path attacks a polling location in Chuschi (a town in Ayacucho), starting the Internal conflict in Peru.
July 7 » Institution of sharia law in Iran.
July 19 » Opening of the Summer Olympics in Moscow.
August 2 » A bomb explodes at the railway station in Bologna, Italy, killing 85 people and wounding more than 200.
December 8 » Former Beatle John Lennon is murdered in front of The Dakota in New York City.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I9331.php : accessed January 11, 2026), "Derk Hendrik Roose (1909-1980)".
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