April 25 » Spanish–American War: The United States declares war on Spain.
June 12 » Philippine Declaration of Independence: General Emilio Aguinaldo declares the Philippines' independence from Spain.
October 6 » Phi Mu Alpha Sinfonia, the largest American music fraternity, is founded at the New England Conservatory of Music.
October 18 » The United States takes possession of Puerto Rico from Spain.
December 10 » Spanish–American War: The Treaty of Paris is signed, officially ending the conflict.
December 26 » Marie and Pierre Curie announce the isolation of radium.
Day of marriage August 22, 1923
The temperature on August 22, 1923 was between 10.5 °C and 18.8 °C and averaged 14.6 °C. There was 14.4 mm of rain. There was 8.3 hours of sunshine (58%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
January 9 » Juan de la Cierva makes the first autogyro flight.
February 15 » Greece becomes the last European country to adopt the Gregorian calendar.
June 27 » Capt. Lowell H. Smith and Lt. John P. Richter perform the first ever aerial refueling in a DH.4B biplane.
July 1 » The Parliament of Canada suspends all Chinese immigration.
August 23 » Captain Lowell Smith and Lieutenant John P. Richter performed the first mid-air refueling on De Havilland DH-4B, setting an endurance flight record of 37 hours.
October 16 » The Walt Disney Company is founded.
Day of death January 10, 1973
The temperature on January 10, 1973 was between 1.3 °C and 5.0 °C and averaged 2.9 °C. There was 0.1 mm of rain. The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
April 1 » Project Tiger, a tiger conservation project, is launched in the Jim Corbett National Park, India.
May 5 » Secretariat wins the 1973 Kentucky Derby in 1:59⁄5, an as-yet unbeaten record.
May 8 » A 71-day standoff between federal authorities and the American Indian Movement members occupying the Pine Ridge Reservation at Wounded Knee, South Dakota ends with the surrender of the militants.
June 20 » Snipers fire upon left-wing Peronists in Buenos Aires, Argentina, in what is known as the Ezeiza massacre. At least 13 are killed and more than 300 are injured.
August 22 » The Congress of Chile votes in favour of a resolution condemning President Salvador Allende's government and demands that he resign or else be unseated through force and new elections.
November 1 » Watergate scandal: Leon Jaworski is appointed as the new Watergate Special Prosecutor.
When copying data from this family tree, please include a reference to the origin: Jan Werkman, "Family tree Jan Werkman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-jan-werkman/I55317.php : accessed May 31, 2024), "Aagtje van Kampen (1898-1973)".
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