The temperature on April 30, 1889 was about 14.0 °C. There was 3 mm of rain. The air pressure was 14 kgf/m2 and came mainly from the east-southeast. The airpressure was 75 cm mercury. The atmospheric humidity was 85%. Source: KNMI
January 22 » Columbia Phonograph is formed in Washington, D.C.
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 2 » Menelik II, Emperor of Ethiopia, signs the Treaty of Wuchale, giving Italy control over Eritrea.
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.
Day of death November 14, 1947
The temperature on November 14, 1947 was between 3.3 °C and 9.0 °C and averaged 6.6 °C. There was 22.0 mm of rain during 7.8 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
February 21 » In New York City, Edwin Land demonstrates the first "instant camera", the Polaroid Land Camera, to a meeting of the Optical Society of America.
February 23 » International Organization for Standardization is founded.
March 29 » Malagasy Uprising against French colonial rule in Madagascar.
June 24 » Kenneth Arnold makes the first widely reported UFO sighting near Mount Rainier, Washington, leading to the coining of the phrase "flying saucer".
July 6 » Referendum held in Sylhet to decide its fate in the Partition of India.
July 8 » Reports are broadcast that a UFO crash landed in Roswell, New Mexico in what became known as the Roswell UFO incident.
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/I188035.php : accessed October 12, 2026), "Tjitte Koopmans (1889-1947)".
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