The temperature on January 31, 1909 was between -0.9 °C and 2.7 °C and averaged 0.6 °C. There was 3.8 mm of rain. There was 3.0 hours of sunshine (33%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
February 12 » The National Association for the Advancement of Colored People (NAACP) is founded.
March 10 » By signing the Anglo-Siamese Treaty of 1909, Thailand relinquishes its sovereignty over the Malay states of Kedah, Kelantan, Perlis and Terengganu, which become British protectorates.
May 31 » The National Negro Committee, forerunner to the National Association for the Advancement of Colored People (NAACP), convenes for the first time.
July 16 » Persian Constitutional Revolution: Mohammad Ali Shah Qajar is forced out as Shah of Persia and is replaced by his son Ahmad Shah Qajar.
August 30 » Burgess Shale fossils are discovered by Charles Doolittle Walcott.
October 16 » William Howard Taft and Porfirio Díaz hold the first summit between a U.S. and a Mexican president. They narrowly escape assassination.
Day of death November 28, 1985
The temperature on November 28, 1985 was between -3.0 °C and 4.5 °C and averaged 0.3 °C. There was 1.0 mm of rain during 0.9 hours. There was 4.5 hours of sunshine (55%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 19 » William J. Schroeder becomes the first recipient of an artificial heart to leave the hospital.
March 20 » Libby Riddles becomes the first woman to win the 1,135-mile Iditarod Trail Sled Dog Race.
April 19 » Two hundred ATF and FBI agents lay siege to the compound of the white supremacist survivalist group The Covenant, The Sword, and the Arm of the Lord in Arkansas; the CSA surrenders two days later.
June 30 » Thirty-nine American hostages from the hijacked TWA Flight 847 are freed in Beirut after being held for 17 days.
August 23 » Hans Tiedge, top counter-spy of West Germany, defects to East Germany.
September 2 » Sri Lankan Civil War: Sri Lankan Tamil politicians and former MPs M. Alalasundaram and V. Dharmalingam are shot dead.
When copying data from this family tree, please include a reference to the origin: Eric Jonkers, "Family tree Jonkers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jonkers/P355.php : accessed February 2, 2026), "Oswald de Ridder (1909-1985)".
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