January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
March 14 » Pelican Island National Wildlife Refuge, the first national wildlife refuge in the US, is established by President Theodore Roosevelt.
July 1 » Start of first Tour de France bicycle race.
September 11 » The first race at the Milwaukee Mile in West Allis, Wisconsin is held. It is the oldest major speedway in the world.
November 17 » The Russian Social Democratic Labour Party splits into two groups: The Bolsheviks (Russian for "majority") and Mensheviks (Russian for "minority").
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
Day of death May 16, 1971
The temperature on May 16, 1971 was between 11.4 °C and 18.2 °C and averaged 13.9 °C. There was 16.9 mm of rain during 5.4 hours. There was 2.2 hours of sunshine (14%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
March 8 » The Fight of the Century between Joe Frazier and Muhammad Ali commences. Frazier wins in 15 rounds via unanimous decision.
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.
June 11 » The U.S. Government forcibly removes the last holdouts to the Native American Occupation of Alcatraz, ending 19 months of control.
September 4 » Alaska Airlines Flight 1866 crashes near Juneau, Alaska, killing all 111 people on board.
September 8 » In Washington, D.C., the John F. Kennedy Center for the Performing Arts is inaugurated, with the opening feature being the premiere of Leonard Bernstein's Mass.
October 12 » The 2,500 year celebration of the Persian Empire begins.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I138928.php : accessed October 13, 2026), "Jan Krommenhoek (1903-1971)".
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