March 13 » British forces occupy Bloemfontein, Orange Free State, during the Second Boer War.
April 30 » Hawaii becomes a territory of the United States, with Sanford B. Dole as governor.
May 17 » Second Boer War: British troops relieve Mafeking.
June 20 » Baron Eduard Toll, leader of the Russian Polar Expedition of 1900, departs Saint Petersburg in Russia on the explorer ship Zarya, never to return.
June 21 » Boxer Rebellion. China formally declares war on the United States, Britain, Germany, France and Japan, as an edict issued from the Empress Dowager Cixi.
October 19 » Max Planck discovers Planck's law of black-body radiation.
Day of marriage October 18, 1924
The temperature on October 18, 1924 was between 0.5 °C and 13.5 °C and averaged 7.1 °C. There was 0.1 mm of rain. There was 5.8 hours of sunshine (55%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. 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.
March 8 » A mine disaster kills 172 coal miners near Castle Gate, Utah.
June 26 » The American occupation of the Dominican Republic ends after eight years.
July 24 » Themistoklis Sofoulis becomes Prime Minister of Greece.
August 28 » The Georgian opposition stages the August Uprising against the Soviet Union.
September 28 » The first aerial circumnavigation is completed by a team from the US Army.
December 19 » German serial killer Fritz Haarmann is sentenced to death for a series of murders.
Day of death April 14, 1969
The temperature on April 14, 1969 was between 1.8 °C and 8.8 °C and averaged 5.2 °C. There was 2.7 mm of rain during 2.4 hours. There was 7.9 hours of sunshine (57%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
January 16 » Soviet spacecraft Soyuz 4 and Soyuz 5 perform the first-ever docking of manned spacecraft in orbit, the first-ever transfer of crew from one space vehicle to another, and the only time such a transfer was accomplished with a space walk.
January 18 » United Airlines Flight 266 crashes into Santa Monica Bay killing all 32 passengers and six crew members.
May 9 » Carlos Lamarca leads the first urban guerrilla action against the military dictatorship of Brazil in São Paulo, by robbing two banks.
May 20 » The Battle of Hamburger Hill in Vietnam ends.
May 21 » Civil unrest in Rosario, Argentina, known as Rosariazo, following the death of a 15-year-old student.
July 20 » Apollo program: Apollo 11's crew successfully makes the first manned landing on the Moon in the Sea of Tranquility. Americans Neil Armstrong and Buzz Aldrin become the first humans to walk on the Moon six and a half hours later.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I65308.php : accessed March 5, 2026), "Harmannus de Vries (1900-1969)".
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