The temperature on May 29, 1889 was about 17.2 °C. There was 0.7 mm of rain. The air pressure was 12 kgf/m2 and came mainly from the south. The airpressure was 76 cm mercury. The atmospheric humidity was 76%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
February 22 » President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
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.
August 4 » The Great Fire of Spokane, Washington destroys some 32 blocks of the city, prompting a mass rebuilding project.
Day of marriage September 20, 1912
The temperature on September 20, 1912 was between 3.7 °C and 14.8 °C and averaged 9.3 °C. There was 8.7 hours of sunshine (70%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
March 30 » Sultan Abd al-Hafid signs the Treaty of Fez, making Morocco a French protectorate.
April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
May 5 » Pravda, the "voice" of the Communist Party of the Soviet Union, begins publication in Saint Petersburg.
October 19 » Italo-Turkish War: Italy takes possession of what is now Libya from the Ottoman Empire.
October 24 » First Balkan War: The Battle of Kirk Kilisse concludes with a Bulgarian victory against the Ottoman Empire.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
Day of death July 22, 1966
The temperature on July 22, 1966 was between 14.0 °C and 19.3 °C and averaged 16.8 °C. There was 0.1 mm of rain. There was 8.0 hours of sunshine (50%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
January 12 » Lyndon B. Johnson states that the United States should stay in South Vietnam until Communist aggression there is ended.
May 16 » The Communist Party of China issues the "May 16 Notice", marking the beginning of the Cultural Revolution.
May 21 » The Ulster Volunteer Force declares war on the Irish Republican Army in Northern Ireland.
July 10 » The Chicago Freedom Movement, led by Martin Luther King, Jr., holds a rally at Soldier Field in Chicago. As many as 60,000 people attend.
December 5 » The musical I Do! I Do!, starring Mary Martin and Robert Preston opens at the 46th Street Theatre, in New York City, and closes on June 15, 1968, after 560 performances.
December 8 » The Greek ship SSHeraklion sinks in a storm in the Aegean Sea, killing over 200.
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/I2412.php : accessed February 7, 2026), "Fedde van der Ploeg (1889-1966)".
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