The temperature on May 17, 1980 was between 6.4 °C and 19.7 °C and averaged 14.8 °C. There was 9.5 hours of sunshine (60%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the 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.
April 3 » US Congress restores a federal trust relationship with the 501 members of the Shvwits, Kanosh, Koosharem, and the Indian Peaks and Cedar City bands of the Paiute people of Utah.
May 13 » An F3 tornado hits Kalamazoo County, Michigan. President Jimmy Carter declares it a federal disaster area.
May 18 » Mount St. Helens erupts in Washington, United States, killing 57 people and causing $3billion in damage.
May 20 » In a referendum in Quebec, the population rejects, by 60% of the vote, a government proposal to move towards independence from Canada.
May 27 » The Gwangju Massacre: Airborne and army troops of South Korea retake the city of Gwangju from civil militias, killing at least 207 and possibly many more.
July 29 » Iran adopts a new "holy" flag after the Islamic Revolution.
When copying data from this family tree, please include a reference to the origin: P.M. Baert, "Family tree Baert", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-baert/I41372.php : accessed January 21, 2026), "Pieter Sj Bootsma (-1980)".
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