The temperature on March 9, 1904 was between 4.1 °C and 13.1 °C and averaged 8.4 °C. There was 3.4 hours of sunshine (30%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
January 7 » The distress signal "CQD" is established only to be replaced two years later by "SOS".
April 30 » The Louisiana Purchase Exposition World's Fair opens in St. Louis, Missouri.
May 5 » Pitching against the Philadelphia Athletics at the Huntington Avenue Grounds, Cy Young of the Boston Americans throws the first perfect game in the modern era of baseball.
November 16 » English engineer John Ambrose Fleming receives a patent for the thermionic valve (vacuum tube).
December 3 » The Jovian moon Himalia is discovered by Charles Dillon Perrine at California's Lick Observatory.
December 7 » Comparative fuel trials begin between warships HMSSpiteful and HMSPeterel: Spiteful was the first warship powered solely by fuel oil, and the trials led to the obsolescence of coal in ships of the Royal Navy.
Day of death May 18, 1967
The temperature on May 18, 1967 was between 2.9 °C and 12.7 °C and averaged 9.1 °C. There was 0.1 mm of rain during 0.1 hours. There was 10.4 hours of sunshine (66%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
April 21 » A few days before the general election in Greece, Colonel George Papadopoulos leads a coup d'état, establishing a military regime that lasts for seven years.
April 28 » Vietnam War: Boxer Muhammad Ali refuses his induction into the United States Army and is subsequently stripped of his championship and license.
June 2 » Protests in West Berlin against the arrival of the Shah of Iran turn into riots, during which Benno Ohnesorg is killed by a police officer. His death results in the founding of the terrorist group Movement 2 June.
August 13 » Two young women became the first fatal victims of grizzly bear attacks in the 57-year history of Montana's Glacier National Park in separate incidents.
October 26 » Mohammad Reza Pahlavi crowns himself Emperor of Iran.
November 30 » South Yemen becomes independent from the United Kingdom.
When copying data from this family tree, please include a reference to the origin: Erna Mark, "The Mark files", database, Genealogy Online (https://www.genealogieonline.nl/the-mark-files/I500040.php : accessed January 19, 2026), "Gertje Ozinga (1904-1967)".
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