January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 7 » A Chinese immigrant in San Francisco falls ill to bubonic plague in the first plague epidemic in the continental United States.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
April 14 » The Exposition Universelle begins.
October 19 » Max Planck discovers Planck's law of black-body radiation.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of marriage November 23, 1923
The temperature on November 23, 1923 was between -2.3 °C and 2.0 °C and averaged 0.1 °C. There was -0.1 hours of sunshine (0%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. 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.
February 10 » Texas Tech University is founded as Texas Technological College in Lubbock, Texas
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.
September 12 » Southern Rhodesia, today called Zimbabwe, is annexed by the United Kingdom.
October 22 » The royalist Leonardopoulos–Gargalidis coup d'état attempt fails in Greece, discrediting the monarchy and paving the way for the establishment of the Second Hellenic Republic.
November 9 » In Munich, Germany, police and government troops crush the Beer Hall Putsch in Bavaria. The failed coup is the work of the Nazis.
Day of death December 9, 1985
The temperature on December 9, 1985 was between 5.1 °C and 8.4 °C and averaged 6.8 °C. There was 2.1 mm of rain during 5.6 hours. The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the 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 17 » Serial killer Richard Ramirez, aka the "Night Stalker", commits the first two murders in his Los Angeles murder spree.
May 25 » Bangladesh is hit by a tropical cyclone and storm surge, which kills approximately 10,000 people.
August 2 » Delta Air Lines Flight 191, a Lockheed L-1011 TriStar, crashes at Dallas/Fort Worth International Airport killing 137.
October 10 » US Navy aircraft intercept an Egyptian airliner carrying the perpetrators of the Achille Lauro hijacking, and force it to land in Italy.
November 21 » United States Navy intelligence analyst Jonathan Pollard is arrested for spying after being caught giving Israel classified information on Arab nations. He is subsequently sentenced to life in prison.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I49246.php : accessed February 24, 2026), "Anna Maria Hameckers (1900-1985)".
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