The temperature on September 21, 1971 was between 4.5 °C and 23.2 °C and averaged 13.6 °C. There was -0.1 mm of rain. There was 10.0 hours of sunshine (81%). The average windspeed was 1 Bft (weak wind) and was prevailing from the ??. Source: KNMI
March 18 » Peru: a landslide crashes into Yanawayin Lake, killing 200 people at the mining camp of Chungar.
August 10 » The Society for American Baseball Research is founded in Cooperstown, New York.
September 13 » State police and National Guardsmen storm New York's Attica Prison to quell a prison revolt, which claimed 43 lives.
November 24 » During a severe thunderstorm over Washington state, a hijacker calling himself Dan Cooper (aka D. B. Cooper) parachutes from a Northwest Orient Airlines plane with $200,000 in ransom money. He has never been found.
December 14 » Bangladesh Liberation War: Over 200 of East Pakistan's intellectuals are executed by the Pakistan Army and their local allies. (The date is commemorated in Bangladesh as Martyred Intellectuals Day.)
December 20 » The international aid organization Doctors Without Borders is founded by Bernard Kouchner and a group of journalists in Paris, France.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I1648.php : accessed January 16, 2026), "Jacomina Dorothea Mienie (-1971)".
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