February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
July 20 » The Ford Motor Company ships its first automobile.
August 18 » German engineer Karl Jatho allegedly flies his self-made, motored gliding airplane four months before the first flight of the Wright brothers.
October 31 » The Purdue Wreck, a railroad train collision in Indianapolis, kills 17 people, including 14 players of the Purdue University football team.
November 17 » The Russian Social Democratic Labour Party splits into two groups: The Bolsheviks (Russian for "majority") and Mensheviks (Russian for "minority").
December 30 » A fire at the Iroquois Theater in Chicago, Illinois kills at least 605.
Day of death July 4, 1973
The temperature on July 4, 1973 was between 14.2 °C and 25.6 °C and averaged 19.4 °C. There was -0.1 mm of rain. There was 11.1 hours of sunshine (67%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northwest. 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.
January 22 » The crew of Apollo 17 addresses a joint session of Congress after the completion of the final Apollo moon landing mission.
March 17 » The Pulitzer Prize-winning photograph Burst of Joy is taken, depicting a former prisoner of war being reunited with his family, which came to symbolize the end of United States involvement in the Vietnam War.
April 6 » The American League of Major League Baseball begins using the designated hitter.
July 31 » A Delta Air Lines jetliner, flight DL 723 crashes while landing in fog at Logan International Airport, Boston, Massachusetts killing 89.
August 2 » A flash fire kills 51 people at the Summerland amusement centre at Douglas, Isle of Man.
November 24 » A national speed limit is imposed on the Autobahn in Germany because of the 1973 oil crisis. The speed limit lasts only four months.
When copying data from this family tree, please include a reference to the origin: Leonie Dekker, "Family tree Baan (Zwijndrecht)", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-baan-zwijndrecht/I21.php : accessed July 16, 2025), "Leendert Baan (1903-1973)".
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