The temperature on June 1, 1889 was about 19.2 °C. The air pressure was 4 kgf/m2 and came mainly from the south-southeast. The airpressure was 76 cm mercury. The atmospheric humidity was 58%. 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.
March 31 » The Eiffel Tower is officially opened.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
August 4 » The Great Fire of Spokane, Washington destroys some 32 blocks of the city, prompting a mass rebuilding project.
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.
When copying data from this family tree, please include a reference to the origin: Jos Smits, "Family tree Smits, van Leeuwenkamp", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-smits-van-leeuwenkamp/R217.php : accessed May 10, 2025), "NN Leeuwenkamp (????-1889)".
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