April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 20 » Pierre and Marie Curie refine radium chloride.
May 17 » Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
June 28 » The U.S. Congress passes the Spooner Act, authorizing President Theodore Roosevelt to acquire rights from Colombia for the Panama Canal.
October 24 » Guatemala's Santa María Volcano begins to erupt, becoming the third-largest eruption of the 20th century.
December 28 » The Syracuse Athletic Club defeated the New York Philadelphians, 5–0, in the first indoor professional football game, which was held at Madison Square Garden.
Day of death June 4, 1968
The temperature on June 4, 1968 was between 10.3 °C and 18.9 °C and averaged 14.4 °C. There was 0.4 mm of rain during 0.5 hours. There was 1.6 hours of sunshine (10%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
January 22 » Apollo 5 lifts off carrying the first Lunar module into space.
March 2 » Baggeridge Colliery closes marking the end of over 300 years of coal mining in the Black Country.
April 29 » The controversial musical Hair, a product of the hippie counter-culture and sexual revolution of the 1960s, opens at the Biltmore Theatre on Broadway, with some of its songs becoming anthems of the anti-Vietnam War movement.
May 26 » H-dagurinn in Iceland: Traffic changes from driving on the left to driving on the right overnight
October 11 » NASA launches Apollo 7, the first successful manned Apollo mission.
November 15 » The Cleveland Transit System becomes the first transit system in the western hemisphere to provide direct rapid transit service from a city's downtown to its major airport.
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/I116783.php : accessed December 29, 2025), "Gerrit de Boer (1902-1968)".
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