The temperature on August 10, 1911 was between 18.1 °C and 33.0 °C and averaged 24.9 °C. There was 12.7 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. 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 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
September 29 » Italy declares war on the Ottoman Empire.
October 9 » An accidental bomb explosion triggers the Wuchang Uprising against the Chinese monarchy.
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 August 18, 1938
The temperature on August 18, 1938 was between 11.2 °C and 18.7 °C and averaged 15.1 °C. There was 4.9 hours of sunshine (34%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
February 4 » Adolf Hitler appoints himself as head of the Armed Forces High Command.
April 25 » U.S. Supreme Court delivers its opinion in Erie Railroad Co. v. Tompkins and overturns a century of federal common law.
June 7 » Second Sino-Japanese War: The Chinese Nationalist government creates the 1938 Yellow River flood to halt Japanese forces. Five hundred to nine hundred thousand civilians are killed.
June 7 » The Douglas DC-4E makes its first test flight.
September 23 » The Czechoslovak army is mobilized in response to the Munich Agreement.
September 30 » The League of Nations unanimously outlaws "intentional bombings of civilian populations".
Day of death July 10, 1958
The temperature on July 10, 1958 was between 11.7 °C and 23.8 °C and averaged 18.1 °C. There was 12.7 hours of sunshine (77%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
February 21 » The CND symbol, aka peace symbol, commissioned by the Direct Action Committee in protest against the Atomic Weapons Research Establishment, is designed and completed by Gerald Holtom.
May 9 » Alfred Hitchcock's film Vertigo has world premiere in San Francisco.
July 1 » Flooding of Canada's Saint Lawrence Seaway begins.
September 1 » Iceland expands its fishing zone, putting it into conflict with the United Kingdom, beginning the Cod Wars.
October 26 » Pan American Airways makes the first commercial flight of the Boeing 707 from New York City to Paris.
December 1 » The Our Lady of the Angels School fire in Chicago kills 92 children and three nuns.
Day of burial July 14, 1958
The temperature on July 14, 1958 was between 10.5 °C and 20.0 °C and averaged 15.8 °C. There was 12.8 hours of sunshine (78%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 18 » Willie O'Ree, the first Black Canadian National Hockey League player, makes his NHL debut with the Boston Bruins.
February 28 » A school bus in Floyd County, Kentucky hits a wrecker truck and plunges down an embankment into the rain-swollen Levisa Fork river. The driver and 26 children die in what remains one of the worst school bus accidents in U.S. history.
March 17 » The United States launches the first solar-powered satellite.
April 13 » American pianist Van Cliburn is awarded first prize at the inaugural International Tchaikovsky Competition in Moscow.
July 9 » A 7.8 Mw strike-slip earthquake in Alaska causes a landslide that produces a megatsunami. The runup from the waves reached 525m (1,722ft) on the rim of Lituya Bay; five people were killed.
November 28 » First successful flight of SM-65 Atlas; the first operational intercontinental ballistic missile (ICBM), developed by the United States and the first member of the Atlas rocket family.
When copying data from this family tree, please include a reference to the origin: Sietse Bouma, "Bouma family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_bouma/I712.php : accessed February 14, 2026), "Jan Korevaar (1911-1958)".
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