January 22 » The United Mine Workers of America is founded in Columbus, Ohio.
June 1 » The United States Census Bureau begins using Herman Hollerith's tabulating machine to count census returns.
July 3 » Idaho is admitted as the 43rd U.S. state.
July 26 » In Buenos Aires, Argentina the Revolución del Parque takes place, forcing President Miguel Ángel Juárez Celman's resignation.
November 23 » King William III of the Netherlands dies without a male heir and a special law is passed to allow his daughter Princess Wilhelmina to succeed him.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of marriage February 3, 1915
The temperature on February 3, 1915 was between 3.0 °C and 8.0 °C and averaged 5.6 °C. There was 2.3 mm of rain. There was 0.1 hours of sunshine (1%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
May 9 » World War I: Second Battle of Artois between German and French forces.
May 17 » The last British Liberal Party government (led by H. H. Asquith) falls.
July 7 » Colombo Town Guard officer Henry Pedris is executed in British Ceylon for allegedly inciting persecution of Muslims.
September 5 » The pacifist Zimmerwald Conference begins.
October 14 » World War I: Bulgaria joins the Central Powers.
Day of death May 7, 1973
The temperature on May 7, 1973 was between 6.0 °C and 12.8 °C and averaged 9.6 °C. There was 1.6 mm of rain during 1.1 hours. There was 2.2 hours of sunshine (14%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
January 22 » A chartered Boeing 707 explodes in flames upon landing at Kano Airport, Nigeria, killing 176.
January 22 » The Supreme Court of the United States delivers its decisions in Roe v. Wade and Doe v. Bolton, legalizing elective abortion in all fifty states.
February 27 » The American Indian Movement occupies Wounded Knee in protest of the federal government.
September 18 » The Bahamas, East Germany and West Germany are admitted to the United Nations.
November 16 » Skylab program: NASA launches Skylab 4 with a crew of three astronauts from Cape Canaveral, Florida for an 84-day mission.
November 24 » A national speed limit is imposed on the Autobahn in Germany because of the 1973 oil crisis. The speed limit lasts only four months.
When copying data from this family tree, please include a reference to the origin: Elly Gelderman, "Family tree Gelderman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gelderman/I6607.php : accessed January 31, 2026), "Petronella Geertruda Maria Poort (1890-1973)".
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