The temperature on November 12, 1971 was between -2.7 °C and 6.8 °C and averaged 4.0 °C. There was 0.6 mm of rain during 1.5 hours. The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
February 2 » The international Ramsar Convention for the conservation and sustainable utilization of wetlands is signed in Ramsar, Mazandaran, Iran.
April 10 » Ping-pong diplomacy: In an attempt to thaw relations with the United States, China hosts the U.S. table tennis team for a week-long visit.
August 9 » The Troubles: The British Army in Northern Ireland launches Operation Demetrius. Hundreds of people are arrested and interned, thousands are displaced, and twenty are killed in the violence that followed.
August 21 » A bomb exploded in the Liberal Party campaign rally in Plaza Miranda, Manila, Philippines with several anti-Marcos political candidates injured.
October 1 » The first practical CT scanner is used to diagnose a patient.
November 6 » The United States Atomic Energy Commission tests the largest U.S. underground hydrogen bomb, code-named Cannikin, on Amchitka Island in the Aleutians.
When copying data from this family tree, please include a reference to the origin: Randy James Hammock, "RanHam Tree", database, Genealogy Online (https://www.genealogieonline.nl/ranham-tree/P2593.php : accessed October 5, 2026), "Andrew A. Hammack (1899-1971)".
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