The temperature on May 28, 1889 was about 17.3 °C. The air pressure was 10 kgf/m2 and came mainly from the south-southwest. The airpressure was 75 cm mercury. The atmospheric humidity was 82%. 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.
June 6 » The Great Seattle Fire destroys all of downtown Seattle.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
November 8 » Montana is admitted as the 41st U.S. state.
November 14 » Pioneering female journalist Nellie Bly (aka Elizabeth Cochrane) begins a successful attempt to travel around the world in less than 80 days. She completes the trip in 72 days.
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The Family tree Sluiter publication was prepared by M. J. Sluiter (contact is not possible).
When copying data from this family tree, please include a reference to the origin: M. J. Sluiter, "Family tree Sluiter", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-sluiter/I405.php : accessed February 17, 2026), "Petronella Maria Elisabeth Richter (1889-????)".
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