May 9 » Australia opens its first national parliament in Melbourne.
June 11 » The boundaries of the Colony of New Zealand are extended by the UK to include the Cook Islands.
September 7 » The Boxer Rebellion in Qing dynasty (modern-day China) officially ends with the signing of the Boxer Protocol.
October 29 » Leon Czolgosz, the assassin of U.S. President William McKinley, is executed by electrocution.
November 1 » Sigma Phi Epsilon, the largest national male collegiate fraternity, is established at Richmond College, in Richmond, Virginia.
November 27 » The U.S. Army War College is established.
Day of death April 30, 1973
The temperature on April 30, 1973 was between -1.8 °C and 15.6 °C and averaged 9.2 °C. There was 5.2 mm of rain during 5.3 hours. There was 0.7 hours of sunshine (5%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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.
June 9 » In horse racing, Secretariat wins the U.S. Triple Crown.
June 27 » The President of Uruguay Juan María Bordaberry dissolves Parliament and establishes a dictatorship.
August 22 » The Congress of Chile votes in favour of a resolution condemning President Salvador Allende's government and demands that he resign or else be unseated through force and new elections.
November 4 » The Netherlands experiences the first Car-Free Sunday caused by the 1973 oil crisis. Highways are used only by cyclists and roller skaters.
December 6 » The Twenty-fifth Amendment: The United States House of Representatives votes 387–35 to confirm Gerald Ford as Vice President of the United States. (On November 27, the Senate confirmed him 92–3.)
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/I132496.php : accessed October 25, 2026), "Jan Wiering (1901-1973)".
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