January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 31 » Datu Muhammad Salleh is killed in Kampung Teboh, Tambunan, ending the Mat Salleh Rebellion.
February 18 » Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.
May 17 » Second Boer War: British troops relieve Mafeking.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
December 18 » The Upper Ferntree Gully to Gembrook, Victoria Narrow-gauge (2ft 6 in or 762mm) Railway (now the Puffing Billy Railway) in Victoria, Australia is opened for traffic.
Christening day February 25, 1900
The temperature on February 25, 1900 was about 14.6 °C. The airpressure was 76 cm mercury. The atmospheric humidity was 74%. Source: KNMI
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 9 » Indian nationalist Birsa Munda dies of cholera in a British prison.
September 13 » Filipino insurgents defeat a small American column in the Battle of Pulang Lupa, during the Philippine–American War.
October 25 » The United Kingdom annexes the Transvaal.
November 7 » The People's Party is founded in Cuba.
December 14 » Quantum mechanics: Max Planck presents a theoretical derivation of his black-body radiation law.
Day of death June 4, 1979
The temperature on June 4, 1979 was between 17.0 °C and 27.0 °C and averaged 20.5 °C. There was -0.1 mm of rain. There was 6.0 hours of sunshine (36%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-southeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
February 1 » Iranian Ayatollah Ruhollah Khomeini returns to Tehran after nearly 15 years of exile.
May 4 » Margaret Thatcher becomes the first female Prime Minister of the United Kingdom.
July 19 » The Sandinista rebels overthrow the government of the Somoza family in Nicaragua.
October 21 » Moshe Dayan resigns from the Israeli government because of strong disagreements with Prime Minister Menachem Begin over policy towards the Arabs.
November 14 » Iran hostage crisis: US President Jimmy Carter issues Executive order 12170, freezing all Iranian assets in the United States in response to the hostage crisis.
November 16 » The first line of Bucharest Metro (Line M1) is opened from Timpuri Noi to Semănătoarea in Bucharest, Romania.
When copying data from this family tree, please include a reference to the origin: Peter John Oswald, "Pop Oswald Tree", database, Genealogy Online (https://www.genealogieonline.nl/pop-oswald-tree/P837.php : accessed December 22, 2025), "Mabel CHAPMAN (1900-1979)".
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