March 18 » Macario Sakay issues Presidential Order No. 1 of his Tagalog Republic.
May 8 » In Martinique, Mount Pelée erupts, destroying the town of Saint-Pierre and killing over 30,000 people. Only a handful of residents survive the blast.
May 31 » Second Boer War: The Treaty of Vereeniging ends the war and ensures British control of South Africa.
June 28 » The U.S. Congress passes the Spooner Act, authorizing President Theodore Roosevelt to acquire rights from Colombia for the Panama Canal.
November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.
Day of death April 12, 1973
The temperature on April 12, 1973 was between -0.5 °C and 7.1 °C and averaged 3.1 °C. There was 3.3 mm of rain during 1.8 hours. There was 3.7 hours of sunshine (27%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 1 » Denmark, Ireland and the United Kingdom are admitted into the European Economic Community.
April 6 » The American League of Major League Baseball begins using the designated hitter.
August 23 » A bank robbery gone wrong in Stockholm, Sweden, turns into a hostage crisis; over the next five days the hostages begin to sympathise with their captors, leading to the term "Stockholm syndrome".
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.
November 14 » The Athens Polytechnic uprising, a massive demonstration of popular rejection of the Greek military junta of 1967–74, begins.
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: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I135480.php : accessed February 14, 2026), "Petrus Herder (1902-1973)".
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