The temperature on May 15, 1968 was between 6.9 °C and 15.6 °C and averaged 11.4 °C. There was 14.6 mm of rain during 3.6 hours. There was 1.0 hours of sunshine (6%). The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 30 » Vietnam War: Tet Offensive launch by forces of the Viet Cong and North Vietnamese Army against South Vietnam, the United States, and their allies.
April 11 » Assassination attempt on Rudi Dutschke, leader of the German student movement.
May 25 » The Gateway Arch in St. Louis, Missouri, is dedicated.
June 11 » Lloyd J. Old identified the first cell surface antigens that could differentiate among different cell types.
July 8 » The Chrysler wildcat strike begins in Detroit, Michigan.
When copying data from this family tree, please include a reference to the origin: Randy James Hammock, "RanHam Tree", database, Genealogy Online (https://www.genealogieonline.nl/ranham-tree/P299.php : accessed December 25, 2025), "James L Copenhaver (1891-1968)".
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