The temperature on September 24, 1889 was about 11.4 °C. There was 11 mm of rain. The air pressure was 22 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 97%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 22 » Columbia Phonograph is formed in Washington, D.C.
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.
May 11 » An attack upon a U.S. Army paymaster and escort results in the theft of over $28,000 and the award of two Medals of Honor.
November 2 » North Dakota and South Dakota are admitted as the 39th and 40th U.S. states.
When copying data from this family tree, please include a reference to the origin: Ruud Heemskerk, "Heemskerk door de eeuwen heen", database, Genealogy Online (https://www.genealogieonline.nl/heemskerk-door-de-eeuwen-heen/R450.php : accessed May 5, 2025), "Martinus van der Kolk (1889-1889)".
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