The temperature on December 6, 1971 was between 2.0 °C and 8.6 °C and averaged 5.3 °C. There was 0.1 mm of rain. There was 1.7 hours of sunshine (21%). The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east. Source: KNMI
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.
July 31 » Apollo program: Apollo 15 astronauts become the first to ride in a lunar rover.
August 10 » The Society for American Baseball Research is founded in Cooperstown, New York.
September 20 » Having weakened after making landfall in Nicaragua the previous day, Hurricane Irene regains enough strength to be renamed Hurricane Olivia, making it the first known hurricane to cross from the Atlantic Ocean into the Pacific.
October 1 » The first practical CT scanner is used to diagnose a patient.
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.
When copying data from this family tree, please include a reference to the origin: Leen Schaap, "Database Schaap", database, Genealogy Online (https://www.genealogieonline.nl/database-schaap/I5826.php : accessed December 26, 2025), "Sonja Brouwer (1971-)".
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