January 4 » Utah is admitted as the 45th U.S. state.
March 2 » The Battle of Adwa: The Italian Army defeated by the Ethiopian Army in Adwa, Tigray, Ethiopia.
June 15 » The deadliest tsunami in Japan's history kills more than 22,000 people.
August 17 » Bridget Driscoll became the first recorded case of a pedestrian killed in a collision with a motor car in the United Kingdom.
September 22 » Queen Victoria surpasses her grandfather King George III as the longest reigning monarch in British history.
December 30 » Filipino patriot and reform advocate José Rizal is executed by a Spanish firing squad in Manila.
Day of death December 21, 1968
The temperature on December 21, 1968 was between -1.1 °C and 8.4 °C and averaged 5.2 °C. There was 1.3 mm of rain during 2.1 hours. There was 0.2 hours of sunshine (3%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 23 » USS Pueblo (AGER-2) is attacked and seized by naval forces of North Korea.
February 17 » In Springfield, Massachusetts, the Naismith Memorial Basketball Hall of Fame opens.
March 17 » As a result of nerve gas testing by the U.S. Army Chemical Corps in Skull Valley, Utah, over 6,000 sheep are found dead.
April 10 » The TEV Wahine, a New Zealand ferry sinks in Wellington harbour due to a fierce storm – the strongest winds ever in Wellington. Out of the 734 people on board, fifty-three died.
October 16 » Tommie Smith and John Carlos are ejected from the US Olympic team for participating in the Olympics Black Power salute.
November 11 » Vietnam War: Operation Commando Hunt initiated. The goal is to interdict men and supplies on the Ho Chi Minh trail, through Laos into South Vietnam.
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/I121095.php : accessed October 23, 2026), "Douwe Pieter Zijlstra (1896-1968)".
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