January 6 » Second Boer War: Having already besieged the fortress at Ladysmith, Boer forces attack it, but are driven back by British defenders.
February 28 » The Second Boer War: The 118-day "Siege of Ladysmith" is lifted.
March 7 » The German liner SSKaiser Wilhelm der Grosse becomes the first ship to send wireless signals to shore.
March 16 » Sir Arthur Evans purchased the land around the ruins of Knossos, the largest Bronze Age archaeological site on Crete.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
December 19 » Hopetoun Blunder: The first Governor-General of Australia John Hope, 7th Earl of Hopetoun, appoints Sir William Lyne premier of the new state of New South Wales, but he is unable to persuade other colonial politicians to join his government and is forced to resign.
Day of marriage June 20, 1923
The temperature on June 20, 1923 was between 6.3 °C and 14.1 °C and averaged 10.5 °C. There was 0.2 mm of rain. There was 0.7 hours of sunshine (4%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northwest. 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.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I176102.php : accessed February 4, 2026), "Jacob Zwanenburg (1900-)".
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