The temperature on April 14, 1890 was about 13.3 °C. The air pressure was 3 kgf/m2 and came mainly from the east. The airpressure was 75 cm mercury. The atmospheric humidity was 34%. Source: KNMI
January 22 » The United Mine Workers of America is founded in Columbus, Ohio.
April 14 » The Pan-American Union is founded by the First International Conference of American States in Washington, D.C.
September 12 » Salisbury, Rhodesia, is founded.
October 1 » Yosemite National Park is established by the U.S. Congress.
November 29 » The Meiji Constitution goes into effect in Japan, and the first Diet convenes.
December 30 » Following the Wounded Knee Massacre, the United States Army and Lakota warriors face off in the Drexel Mission Fight.
Day of death March 20, 1980
The temperature on March 20, 1980 was between -4.0 °C and 3.7 °C and averaged -0.6 °C. There was 9.8 hours of sunshine (81%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 27 » Through cooperation between the U.S. and Canadian governments, six American diplomats secretly escape hostilities in Iran in the culmination of the Canadian Caper.
May 13 » An F3 tornado hits Kalamazoo County, Michigan. President Jimmy Carter declares it a federal disaster area.
May 18 » Students in Gwangju, South Korea begin demonstrations calling for democratic reforms.
July 24 » The Quietly Confident Quartet of Australia wins the men's 4 x 100 metre medley relay at the Moscow Olympics, the only time the United States has not won the event at Olympic level.
July 30 » Vanuatu gains independence.
September 30 » Ethernet specifications are published by Xerox working with Intel and Digital Equipment Corporation.
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/I102529.php : accessed October 19, 2026), "Jeltje de Boer (1890-1980)".
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