January 23 » Second Boer War: The Battle of Spion Kop between the forces of the South African Republic and the Orange Free State and British forces ends in a British defeat.
February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
April 30 » Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.
May 18 » The United Kingdom proclaims a protectorate over Tonga.
August 3 » The Firestone Tire and Rubber Company is founded.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of marriage April 11, 1923
The temperature on April 11, 1923 was between 2.7 °C and 20.5 °C and averaged 12.1 °C. There was 10.4 hours of sunshine (76%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-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.
January 1 » Britain's Railways are grouped into the Big Four: LNER, GWR, SR, and LMS.
February 15 » Greece becomes the last European country to adopt the Gregorian calendar.
April 26 » The Duke of York weds Lady Elizabeth Bowes-Lyon at Westminster Abbey.
April 28 » Wembley Stadium is opened, named initially as the Empire Stadium.
August 2 » Vice President Calvin Coolidge becomes U.S. President upon the death of President Warren G. Harding.
October 29 » Turkey becomes a republic following the dissolution of the Ottoman Empire.
Day of death December 28, 1968
The temperature on December 28, 1968 was between -5.5 °C and -0.1 °C and averaged -2.2 °C. There was 1.6 mm of rain during 2.1 hours. There was 1.7 hours of sunshine (22%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northwest. Source: KNMI
January 21 » Vietnam War: Battle of Khe Sanh: One of the most publicized and controversial battles of the war begins.
January 22 » Operation Igloo White, a US electronic surveillance system to stop communist infiltration into South Vietnam begins installation.
January 30 » Vietnam War: Tet Offensive launch by forces of the Viet Cong and North Vietnamese Army against South Vietnam, the United States, and their allies.
April 7 » Motor racing world champion Jim Clark is killed in an accident during a Formula Two race at Hockenheim.
July 1 » The Treaty on the Non-Proliferation of Nuclear Weapons is signed in Washington, D.C., London and Moscow by sixty-two countries.
When copying data from this family tree, please include a reference to the origin: Wiel Hoppener, "Genealogy Hoppener/Hoeppener", database, Genealogy Online (https://www.genealogieonline.nl/genealogie-hoppener-hoeppener/I14195.php : accessed June 17, 2024), "Hermanus de Koning (1900-1968)".
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