The temperature on February 6, 1889 was about 2.5 °C. There was 6 mm of rain. The air pressure was 8 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 89%. 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.
February 9 » US president Grover Cleveland signs a bill elevating the United States Department of Agriculture to a Cabinet-level agency.
March 31 » The Eiffel Tower is officially opened.
July 11 » Tijuana, Mexico, is founded.
November 23 » The first jukebox goes into operation at the Palais Royale Saloon in San Francisco.
When copying data from this family tree, please include a reference to the origin: Joop Admiraal, "Database Admiraal", database, Genealogy Online (https://www.genealogieonline.nl/database-admiraal/I2920.php : accessed May 12, 2025), "Meijer Groen (1868-1915)".
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