January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
June 9 » Indian nationalist Birsa Munda dies of cholera in a British prison.
July 2 » The first Zeppelin flight takes place on Lake Constance near Friedrichshafen, Germany.
July 9 » The Federation of Australia is given royal assent.
September 8 » Galveston hurricane: A powerful hurricane hits Galveston, Texas killing about 8,000 people.
Day of marriage December 12, 1923
The temperature on December 12, 1923 was between -4.0 °C and 3.6 °C and averaged -0.1 °C. There was 1.3 hours of sunshine (17%). The average windspeed was 2 Bft (weak wind) and was prevailing from the east. 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 15 » Greece becomes the last European country to adopt the Gregorian calendar.
February 16 » Howard Carter unseals the burial chamber of Pharaoh Tutankhamun.
April 26 » The Duke of York weds Lady Elizabeth Bowes-Lyon at Westminster Abbey.
August 2 » Vice President Calvin Coolidge becomes U.S. President upon the death of President Warren G. Harding.
September 8 » Honda Point disaster: Nine US Navy destroyers run aground off the California coast. Seven are lost, and twenty-three sailors killed.
September 29 » The British Mandate for Palestine takes effect, creating Mandatory Palestine.
Day of death January 18, 1973
The temperature on January 18, 1973 was between 0.8 °C and 2.9 °C and averaged 1.7 °C. There was -0.1 mm of rain. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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.
January 8 » Watergate scandal: The trial of seven men accused of illegal entry into Democratic Party headquarters at Watergate begins.
March 29 » Vietnam War: The last United States combat soldiers leave South Vietnam.
April 4 » The Twin Towers of the World Trade Center in New York City are officially dedicated.
April 30 » Watergate scandal: U.S. President Richard Nixon announces that White House Counsel John Dean has been fired and that other top aides, most notably H. R. Haldeman and John Ehrlichman, have resigned.
July 29 » Greeks vote to abolish the monarchy, beginning the first period of the Metapolitefsi.
September 23 » Argentine general election: Juan Perón returns to power in Argentina.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I15276.php : accessed February 19, 2026), "Christiaan Wiesemann (1900-1973)".
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