March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
May 8 » The Irish Literary Theatre in Dublin produced its first play.
July 17 » NEC Corporation is organized as the first Japanese joint venture with foreign capital.
July 26 » Ulises Heureaux, the 27th President of the Dominican Republic, is assassinated.
September 13 » Mackinder, Ollier and Brocherel make the first ascent of Batian (5,199 m - 17,058ft), the highest peak of Mount Kenya.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
Day of death August 12, 1971
The temperature on August 12, 1971 was between 11.2 °C and 18.2 °C and averaged 15.3 °C. There was 0.9 mm of rain during 0.6 hours. There was 0.8 hours of sunshine (5%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the southwest. Source: KNMI
November 22 » In Britain's worst mountaineering tragedy, the Cairngorm Plateau Disaster, five children and one of their leaders are found dead from exposure in the Scottish mountains.
November 27 » The Soviet space program's Mars 2 orbiter releases a descent module. It malfunctions and crashes, but it is the first man-made object to reach the surface of Mars.
November 28 » Fred Quilt, a leader of the Tsilhqot'in First Nation suffers severe abdominal injuries allegedly caused by Royal Canadian Mounted Police officers; he dies two days later.
November 30 » Iran seizes the Greater and Lesser Tunbs from the Emirates of Sharjah and Ras Al Khaimah.
December 2 » Abu Dhabi, Ajman, Fujairah, Sharjah, Dubai, and Umm al-Quwain form the United Arab Emirates.
December 6 » Pakistan severs diplomatic relations with India, initiating the Indo-Pakistani War of 1971.
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I57592.php : accessed January 29, 2026), "Aart Prijs (1899-1971)".
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