The temperature on November 21, 1967 was between -3.6 °C and 5.7 °C and averaged 0.8 °C. There was 0.2 mm of rain. There was 7.2 hours of sunshine (84%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 14 » The New York Times reports that the U.S. Army is conducting secret germ warfare experiments.
May 27 » The U.S. Navy aircraft carrier USSJohn F. Kennedy is launched by Jacqueline Kennedy and her daughter Caroline.
July 29 » During the fourth day of celebrating its 400th anniversary, the city of Caracas, Venezuela is shaken by an earthquake, leaving approximately 500 dead.
September 1 » The Khmer–Chinese Friendship Association is banned in Cambodia.
October 21 » The National Mobilization Committee to End the War in Vietnam organizes a march of fifty thousand people from the Lincoln Memorial to the Pentagon.
December 4 » Vietnam War: U.S. and South Vietnamese forces engage Viet Cong troops in the Mekong Delta.
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/I219016.php : accessed October 25, 2026), "Jacoba Ytsma (± 1949-1967)".
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