The temperature on July 18, 1889 was about 17.0 °C. There was 0.4 mm of rain. The air pressure was 20 kgf/m2 and came mainly from the west-northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 78%. Source: KNMI
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 22 » President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
August 4 » The Great Fire of Spokane, Washington destroys some 32 blocks of the city, prompting a mass rebuilding project.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
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: Ferry Hegeman, "Family tree Hegeman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-hegeman/I34517.php : accessed February 20, 2026), "Johannes Ahrens (1889-????)".
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