January 24 » Second Boer War: Boers stop a British attempt to break the Siege of Ladysmith in the Battle of Spion Kop.
April 15 » Philippine–American War: Filipino guerrillas launch a surprise attack on U.S. infantry and begin a four-day siege of Catubig, Philippines.
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.
August 16 » The Battle of Elands River during the Second Boer War ends after a 13-day siege is lifted by the British. The battle had begun when a force of between 2,000 and 3,000 Boers had surrounded a force of 500 Australians, Rhodesians, Canadians and British soldiers at a supply dump at Brakfontein Drift.
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 September 14, 1931
The temperature on September 14, 1931 was between 2.7 °C and 16.8 °C and averaged 9.2 °C. There was 8.1 hours of sunshine (63%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 3 » The United States adopts The Star-Spangled Banner as its national anthem.
March 11 » Ready for Labour and Defence of the USSR, abbreviated as GTO, is introduced in the Soviet Union.
September 30 » Start of "Die Voortrekkers" youth movement for Afrikaners in Bloemfontein, South Africa.
October 17 » Al Capone is convicted of income tax evasion.
November 22 » Al-Mina'a SC is founded in Iraq.
December 11 » Statute of Westminster 1931: The British Parliament establishes legislative equality between the UK and the Dominions of the Commonwealth—Australia, Canada, Newfoundland, New Zealand, South Africa, and Ireland.
Day of death May 17, 1989
The temperature on May 17, 1989 was between 7.5 °C and 22.0 °C and averaged 15.9 °C. There was 12.8 hours of sunshine (81%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from Tuesday, November 4, 1986 to Tuesday, November 7, 1989 the cabinet Lubbers II, with Drs. R.F.M. Lubbers (CDA) as prime minister.
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 8 » Kegworth air disaster: British Midland Flight 92, a Boeing 737-400, crashes into the M1 motorway, killing 47 of the 126 people on board.
March 2 » Twelve European Community nations agree to ban the production of all chlorofluorocarbons (CFCs) by the end of the century.
April 15 » Upon Hu Yaobang's death, the Tiananmen Square protests of 1989 begin in China.
August 7 » U.S. Congressman Mickey Leland (D-TX) and 15 others die in a plane crash in Ethiopia.
November 17 » Cold War: Velvet Revolution begins: In Czechoslovakia, a student demonstration in Prague is quelled by riot police. This sparks an uprising aimed at overthrowing the communist government (it succeeds on December 29).
December 29 » Czech writer, philosopher and dissident Václav Havel is elected the first post-communist President of Czechoslovakia.
When copying data from this family tree, please include a reference to the origin: Nico de Kunder, "Family tree De Kunder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-kunder/I2267.php : accessed October 19, 2026), "Maria Sophia Josephina van Hinsberg (1900-1989)".
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