The temperature on April 23, 1968 was between 5.7 °C and 14.9 °C and averaged 11.2 °C. There was 7.6 mm of rain during 5.9 hours. There was 0.2 hours of sunshine (1%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 22 » Operation Igloo White, a US electronic surveillance system to stop communist infiltration into South Vietnam begins installation.
March 16 » General Motors produces its 100 millionth automobile, the Oldsmobile Toronado.
March 18 » Gold standard: The U.S. Congress repeals the requirement for a gold reserve to back US currency.
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.
September 30 » The Boeing 747 is rolled out and shown to the public for the first time.
October 20 » Former First Lady Jacqueline Kennedy marries Greek shipping tycoon Aristotle Onassis.
When copying data from this family tree, please include a reference to the origin: Eva Drenth, "Family tree Diverse", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-drenth/I37149.php : accessed January 14, 2026), "Hendrica Verhoef (1939-1968)".
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