The temperature on October 23, 1889 was about 6.9 °C. There was 0.4 mm of rain. The airpressure was 75 cm mercury. The atmospheric humidity was 98%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 30 » Archduke Crown Prince Rudolf of Austria, heir to the Austro-Hungarian crown, is found dead with his mistress Baroness Mary Vetsera in the Mayerling.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
April 22 » At noon, thousands rush to claim land in the Land Rush of 1889. Within hours the cities of Oklahoma City and Guthrie are formed with populations of at least 10,000.
August 4 » The Great Fire of Spokane, Washington destroys some 32 blocks of the city, prompting a mass rebuilding project.
August 13 » William Gray of Hartford, Connecticut is granted United States Patent Number 408,709 for "Coin-controlled apparatus for telephones."
Day of death April 15, 1958
The temperature on April 15, 1958 was between 2.2 °C and 9.2 °C and averaged 5.0 °C. There was 0.7 mm of rain during 1.8 hours. There was 0.8 hours of sunshine (6%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
February 5 » A hydrogen bomb known as the Tybee Bomb is lost by the US Air Force off the coast of Savannah, Georgia, never to be recovered.
February 6 » Eight Manchester United F.C. players and 15 other passengers are killed in the Munich air disaster.
March 3 » Nuri al-Said becomes Prime Minister of Iraq for the eighth time.
April 26 » Final run of the Baltimore and Ohio Railroad's Royal Blue from Washington, D.C., to New York City after 68years, the first U.S. passenger train to use electric locomotives.
July 7 » US President Dwight D. Eisenhower signs the Alaska Statehood Act into law.
August 17 » Pioneer 0, America's first attempt at lunar orbit, is launched using the first Thor-Able rocket and fails. Notable as one of the first attempted launches beyond Earth orbit by any country.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I4571.php : accessed January 19, 2026), "Huberdina Verhaagen (1889-1958)".
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