The temperature on October 3, 1889 was about 10.7 °C. There was 1 mm of rain. The air pressure was 6 kgf/m2 and came mainly from the southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 95%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
June 29 » Hyde Park and several other Illinois townships vote to be annexed by Chicago, forming the largest United States city in area and second largest in population at the time.
July 11 » Tijuana, Mexico, is founded.
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.
Day of marriage January 19, 1917
The temperature on January 19, 1917 was between -3.9 °C and 0.5 °C and averaged -1.0 °C. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I172492.php : accessed February 20, 2026), "Aaltje Zuidersma (1889-????)".
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