The temperature on March 20, 1889 was about 7.9 °C. There was 1 mm of rain. The air pressure was 16 kgf/m2 and came mainly from the south. The airpressure was 74 cm mercury. The atmospheric humidity was 85%. 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.
February 11 » Meiji Constitution of Japan is adopted.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
July 8 » The first issue of The Wall Street Journal is published.
When copying data from this family tree, please include a reference to the origin: W.H.W. Weber, "Weber stamboom", database, Genealogy Online (https://www.genealogieonline.nl/weber-stamboom/P631.php : accessed February 22, 2026), "Adriana Hiligonda Rijgersberg (1889-????)".
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