March 16 » In Melbourne the representatives of five colonies adopted a constitution, which would become the basis of the Commonwealth of Australia.
June 10 » Spanish–American War: In the Battle of Guantánamo Bay, U.S. Marines begin the American invasion of Spanish-held Cuba.
August 13 » Carl Gustav Witt discovers 433 Eros, the first near-Earth asteroid to be found.
September 2 » Battle of Omdurman: British and Egyptian troops defeat Sudanese tribesmen and establish British dominance in Sudan.
September 13 » Hannibal Goodwin patents celluloid photographic film.
October 14 » The steam ship SSMohegan sinks near the Lizard peninsula, Cornwall, killing 106.
Day of marriage September 15, 1917
The temperature on September 15, 1917 was between 5.9 °C and 19.5 °C and averaged 12.7 °C. There was 0.1 mm of rain. There was 9.7 hours of sunshine (76%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
June 4 » The first Pulitzer Prizes are awarded: Laura E. Richards, Maude H. Elliott, and Florence Hall receive the first Pulitzer for biography (for Julia Ward Howe). Jean Jules Jusserand receives the first Pulitzer for history for his work With Americans of Past and Present Days. Herbert B. Swope receives the first Pulitzer for journalism for his work for the New York World.
June 5 » World War I: Conscription begins in the United States as "Army registration day".
October 15 » World War I: Dutch dancer Mata Hari is executed by France for espionage.
December 11 » World War I: British General Edmund Allenby enters Jerusalem on foot and declares martial law.
December 12 » Father Edward J. Flanagan founds Boys Town as a farm village for wayward boys.
December 20 » Cheka, the first Soviet secret police force, is founded.
Day of death January 25, 1963
The temperature on January 25, 1963 was between -8.5 °C and 0.1 °C and averaged -2.3 °C. There was 0.6 hours of sunshine (7%). The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west. Source: KNMI
May 30 » A protest against pro-Catholic discrimination during the Buddhist crisis is held outside South Vietnam's National Assembly, the first open demonstration during the eight-year rule of Ngo Dinh Diem.
June 11 » Buddhist monk Thích Quảng Đức burns himself with gasoline in a busy Saigon intersection to protest the lack of religious freedom in South Vietnam.
July 1 » ZIP codes are introduced for United States mail.
July 24 » The ship Bluenose II was launched in Lunenburg, Nova Scotia. The schooner is a major Canadian symbol.
July 26 » An earthquake in Skopje, Yugoslavia (present-day North Macedonia) leaves 1,100 dead.
December 31 » The Central African Federation officially collapses, subsequently becoming Zambia, Malawi and Rhodesia.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I1277.php : accessed February 9, 2026), "Sjoerd Mijnheer (1898-1963)".
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