March 30 » German Society of Chemistry issues an invitation to other national scientific organizations to appoint delegates to the International Committee on Atomic Weights.
June 12 » New Richmond tornado: The eighth deadliest tornado in U.S. history kills 117 people and injures around 200.
July 11 » Fiat founded by Giovanni Agnelli in Turin, Italy.
September 23 » The American Asiatic Squadron destroys a Filipino battery at the Battle of Olongapo.
Day of death September 7, 1973
The temperature on September 7, 1973 was between 12.6 °C and 24.6 °C and averaged 17.4 °C. There was 0.2 mm of rain. There was 8.2 hours of sunshine (62%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west. 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 1 » Denmark, Ireland and the United Kingdom are admitted into the European Economic Community.
April 3 » Martin Cooper of Motorola makes the first handheld mobile phone call to Joel S. Engel of Bell Labs.
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.
September 20 » Singer Jim Croce, songwiter and musician Maury Muehleisen and four others die when their light aircraft crashes on takeoff at Natchitoches Regional Airport in Louisiana.
November 14 » In the United Kingdom, Princess Anne marries Captain Mark Phillips, in Westminster Abbey.
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/I188085.php : accessed October 12, 2026), "Klaaske de Bruin (1899-1973)".
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