January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 15 » The Coca-Cola Company, then known as the Pemberton Medicine Company, is incorporated in Atlanta.
January 22 » Columbia Phonograph is formed in Washington, D.C.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
June 3 » The first long-distance electric power transmission line in the United States is completed, running 14 miles (23km) between a generator at Willamette Falls and downtown Portland, Oregon.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
Day of marriage February 25, 1915
The temperature on February 25, 1915 was between -1.8 °C and 7.0 °C and averaged 1.6 °C. There was 0.2 mm of rain. There was 9.0 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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.
March 20 » Albert Einstein publishes his general theory of relativity.
April 5 » Boxing challenger Jess Willard knocks out Jack Johnson in Havana, Cuba to become the Heavyweight Champion of the World.
April 25 » World War I: The Battle of Gallipoli begins: The invasion of the Turkish Gallipoli Peninsula by British, French, Indian, Newfoundland, Australian and New Zealand troops, begins with landings at Anzac Cove and Cape Helles.
May 27 » HMS Princess Irene exploded and sank off Sheerness, Kent with the loss of 352 lives.
August 4 » World War I: The German 12th Army occupies Warsaw during the Gorlice–Tarnów Offensive and the Great Retreat of 1915.
August 29 » US Navy salvage divers raise F-4, the first U.S. submarine sunk in an accident.
Day of death June 29, 1964
The temperature on June 29, 1964 was between 8.4 °C and 16.5 °C and averaged 13.5 °C. There was 0.3 mm of rain during 0.4 hours. There was 6.8 hours of sunshine (41%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I181367.php : accessed February 15, 2026), "Aaltje Visser (1889-1964)".
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