February 23 » Cuba leases Guantánamo Bay to the United States "in perpetuity".
July 1 » Start of first Tour de France bicycle race.
July 19 » Maurice Garin wins the first Tour de France.
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 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
Day of death April 1, 1973
The temperature on April 1, 1973 was between 3.5 °C and 9.8 °C and averaged 6.9 °C. There was 2.5 mm of rain during 0.5 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
April 4 » A Lockheed C-141 Starlifter, dubbed the Hanoi Taxi, makes the last flight of Operation Homecoming.
May 3 » The 108-story Sears Tower in Chicago is topped out at 1,451 feet as the world's tallest building.
May 11 » Citing government misconduct, Daniel Ellsberg's charges for his involvement in releasing the Pentagon Papers to The New York Times are dismissed.
August 2 » A flash fire kills 51 people at the Summerland amusement centre at Douglas, Isle of Man.
October 21 » Fred Dryer of the Los Angeles Rams becomes the first player in NFL history to score two safeties in the same game.
October 25 » Egypt and Israel accept United Nations Security Council Resolution 339.
When copying data from this family tree, please include a reference to the origin: Hilbert Botter, "Family tree Botter", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-botter/I4591.php : accessed February 28, 2026), "Jacob Koster (1903-1973)".
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