The temperature on October 10, 1911 was between 3.5 °C and 13.8 °C and averaged 8.7 °C. There was 8.5 hours of sunshine (77%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
June 28 » The Nakhla meteorite, the first one to suggest signs of aqueous processes on Mars, falls to Earth, landing in Egypt.
December 29 » Sun Yat-sen becomes the provisional President of the Republic of China; he formally takes office on January 1, 1912.
Day of marriage July 20, 1954
The temperature on July 20, 1954 was between 6.3 °C and 21.1 °C and averaged 15.3 °C. There was 10.1 hours of sunshine (63%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
March 1 » Nuclear weapons testing: The Castle Bravo, a 15-megaton hydrogen bomb, is detonated on Bikini Atoll in the Pacific Ocean, resulting in the worst radioactive contamination ever caused by the United States.
April 22 » Red Scare: Witnesses begin testifying and live television coverage of the Army–McCarthy hearings begins.
May 7 » Indochina War: The Battle of Dien Bien Phu ends in a French defeat and a Viet Minh victory (the battle began on March 13).
June 24 » First Indochina War: Battle of Mang Yang Pass: Viet Minh troops belonging to the 803rd Regiment ambush G.M.100 of France in An Khê.
August 15 » Alfredo Stroessner begins his dictatorship in Paraguay.
August 23 » First flight of the Lockheed C-130 multi-role aircraft.
When copying data from this family tree, please include a reference to the origin: Hans van Ekelenburg, "Family tree Van Ekelenburg", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-van-ekelenburg/I5244.php : accessed March 7, 2026), "Hendrikus Martinus Jacobus Ton (1911-)".
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