March 1 » Battle of Adwa: An Ethiopian army defeats an outnumbered Italian force, ending the First Italo-Ethiopian War.
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
May 27 » The F4-strength St. Louis–East St. Louis tornado hits in St. Louis, Missouri, and East St. Louis, Illinois, killing at least 255 people and causing over $10-million in damage.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
June 28 » An explosion in the Newton Coal Company's Twin Shaft Mine in Pittston, Pennsylvania results in a massive cave-in that kills 58 miners.
Day of death June 22, 1968
The temperature on June 22, 1968 was between 11.2 °C and 17.5 °C and averaged 14.8 °C. There was 0.9 hours of sunshine (5%). The heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
April 4 » A.E.K. Athens B.C. becomes the first Greek team to win the European Basketball Cup.
April 4 » Martin Luther King Jr. is assassinated by James Earl Ray at a motel in Memphis, Tennessee.
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.
July 1 » The United States Central Intelligence Agency's Phoenix Program is officially established.
November 17 » British European Airways introduces the BAC One-Eleven into commercial service.
December 26 » The Communist Party of the Philippines is established by Jose Maria Sison, breaking away from the Partido Komunista ng Pilipinas-1930.
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/I108689.php : accessed October 19, 2026), "Jelle van der Zwaag (1896-1968)".
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