April 26 » Atlético Madrid Association football club is founded
April 29 » A landslide kills 70 people in Frank, in the District of Alberta, Canada.
June 16 » Roald Amundsen leaves Oslo, Norway, to commence the first east–west navigation of the Northwest Passage.
July 1 » Start of first Tour de France bicycle race.
July 20 » The Ford Motor Company ships its first automobile.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
Day of death September 3, 1971
The temperature on September 3, 1971 was between 10.9 °C and 21.8 °C and averaged 16.9 °C. There was 4.7 hours of sunshine (35%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
May 31 » In accordance with the Uniform Monday Holiday Act passed by the U.S. Congress in 1968, observation of Memorial Day occurs on the last Monday in May for the first time, rather than on the traditional Memorial Day of May 30.
July 30 » Apollo program: Apollo 15 Mission: David Scott and James Irwin on the Apollo Lunar Module Falcon land on the Moon with the first Lunar Rover.
September 9 » The four-day Attica Prison riot begins, eventually resulting in 39 dead, most killed by state troopers retaking the prison.
September 15 » The first Greenpeace ship sets sail to protest against nuclear testing on Amchitka Island.
October 12 » The 2,500 year celebration of the Persian Empire begins.
November 12 » Vietnam War: As part of Vietnamization, US President Richard Nixon sets February 1, 1972 as the deadline for the removal of another 45,000 American troops from Vietnam.
When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I517.php : accessed February 8, 2026), "Leonie Riské (1903-1971)".
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