The temperature on April 17, 1889 was about 7.1 °C. The air pressure was 3 kgf/m2 and came mainly from the northwest. The airpressure was 76 cm mercury. The atmospheric humidity was 91%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
May 31 » Johnstown Flood: Over 2,200 people die after a dam fails and sends a 60-foot (18-meter) wall of water over the town of Johnstown, Pennsylvania.
September 28 » The General Conference on Weights and Measures (CGPM) defines the length of a meter.
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: F. Zieltjens, "Family tree Zieltjens", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-zieltjens/I3704.php : accessed November 10, 2024), "Sara Zijlstra (1889-????)".
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