February 6 » The Permanent Court of Arbitration, an international arbitration court at The Hague, is created when the Senate of the Netherlands ratifies an 1899 peace conference decree.
February 14 » British forces begin the Battle of the Tugela Heights in an effort to lift the Siege of Ladysmith.
March 14 » The Gold Standard Act is ratified, placing the United States currency on the gold standard.
June 5 » Second Boer War: British soldiers take Pretoria.
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.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death May 25, 1987
The temperature on May 25, 1987 was between 6.7 °C and 22.7 °C and averaged 15.8 °C. There was 14.2 hours of sunshine (88%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the 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.
March 7 » Lieyu massacre: Taiwanese military massacre of 19 unarmed Vietnamese refugees at Donggang, Lieyu, Kinmen.
March 20 » The Food and Drug Administration approves the anti-AIDS drug, AZT.
April 18 » The New York Islanders defeat the Washington Capitals 3–2 in Game 7 of their Patrick Division Semifinal series.
July 1 » The American radio station WFAN in New York City is launched as the world's first all-sports radio station.
October 21 » The Jaffna hospital massacre is carried out by Indian Peace Keeping Force in Sri Lanka, killing 70 ethnic Tamil patients, doctors and nurses.
December 9 » Israeli–Palestinian conflict: The First Intifada begins in the Gaza Strip and West Bank.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I246801.php : accessed March 5, 2026), "Catharina Cornelia Leenaars (1900-1987)".
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