The temperature on April 13, 1890 was about 8.4 °C. The air pressure was 1 kgf/m2 and came mainly from the east-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 61%. Source: KNMI
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
October 4 » Horace Rawlins wins the first U.S. Open Men's Golf Championship.
November 8 » While experimenting with electricity, Wilhelm Röntgen discovers the X-ray.
November 27 » At the Swedish–Norwegian Club in Paris, Alfred Nobel signs his last will and testament, setting aside his estate to establish the Nobel Prize after he dies.
December 28 » Wilhelm Röntgen publishes a paper detailing his discovery of a new type of radiation, which later will be known as x-rays.
When copying data from this family tree, please include a reference to the origin: Margriet E- Visser-Groot, "Family tree Visser-Groot", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-visser-groot/I24112.php : accessed June 25, 2024), "Geertje Langereis (1890-1895)".
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