The temperature on June 21, 1971 was between 10.7 °C and 17.9 °C and averaged 13.7 °C. There was 2.0 hours of sunshine (12%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
April 1 » Bangladesh Liberation War: The Pakistan Army massacre over 1,000 people in Keraniganj Upazila, Bangladesh.
July 30 » An All Nippon Airways Boeing 727 and a Japanese Air Force F-86 collide over Morioka, Iwate, Japan killing 162.
August 5 » The first Pacific Islands Forum (then known as the "South Pacific Forum") is held in Wellington, New Zealand, with the aim of enhancing cooperation between the independent countries of the Pacific Ocean.
August 18 » Vietnam War: Australia and New Zealand decide to withdraw their troops from Vietnam.
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 4 » The PNS Ghazi, a submarine belonging to the Pakistan Navy, sinks during the course of the Indo-Pakistani Naval War of 1971.
Christening day September 11, 1971
The temperature on September 11, 1971 was between 6.4 °C and 18.4 °C and averaged 12.6 °C. There was -0.1 mm of rain. There was 9.1 hours of sunshine (70%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
February 9 » The 6.5–6.7 Mw Sylmar earthquake hits the Greater Los Angeles Area with a maximum Mercalli intensity of XI (Extreme), killing 64 and injuring 2,000.
February 24 » The All India Forward Bloc holds an emergency central committee meeting after its chairman, Hemantha Kumar Bose, is killed three days earlier. P.K. Mookiah Thevar is appointed as the new chairman.
July 5 » The Twenty-sixth Amendment to the United States Constitution, lowering the voting age from 21 to 18 years, is formally certified by President Richard Nixon.
September 4 » Alaska Airlines Flight 1866 crashes near Juneau, Alaska, killing all 111 people on board.
November 10 » In Cambodia, Khmer Rouge forces attack the city of Phnom Penh and its airport, killing 44, wounding at least 30 and damaging nine aircraft.
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: Paul Potten, "Family tree Potten", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-potten/I1001.php : accessed January 31, 2026), "Heidie Petronella Maria Wijnands (1971-)".
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