The temperature on August 17, 1889 was about 18.3 °C. The air pressure was 14 kgf/m2 and came mainly from the south-southwest. The airpressure was 76 cm mercury. The atmospheric humidity was 86%. Source: KNMI
January 8 » Herman Hollerith is issued US patent #395,791 for the 'Art of Applying Statistics' — his punched card calculator.
January 22 » Columbia Phonograph is formed in Washington, D.C.
February 9 » US president Grover Cleveland signs a bill elevating the United States Department of Agriculture to a Cabinet-level agency.
February 22 » President Grover Cleveland signs a bill admitting North Dakota, South Dakota, Montana and Washington as U.S. states.
May 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
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.
When copying data from this family tree, please include a reference to the origin: P.Heres, "Family tree Gerrit van Ommen", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-gerrit-van-ommen/I1099523854.php : accessed June 7, 2024), "Johanna Willemina Ham (1887-1889)".
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