January 18 » An X-ray generating machine is exhibited for the first time by H. L. Smith.
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
May 26 » Nicholas II becomes the last Tsar of Imperial Russia.
June 4 » Henry Ford completes the Ford Quadricycle, his first gasoline-powered automobile, and gives it a successful test run.
July 28 » The city of Miami, Florida is incorporated.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
Day of death February 28, 1968
The temperature on February 28, 1968 was between -1.9 °C and 2.3 °C and averaged 0.2 °C. There was 0.3 hours of sunshine (3%). The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east-northeast. Source: KNMI
March 31 » American President Lyndon B. Johnson speaks to the nation of "Steps to Limit the War in Vietnam" in a television address. At the conclusion of his speech, he announces: "I shall not seek, and I will not accept, the nomination of my party for another term as your President."
April 8 » BOAC Flight 712 catches fire shortly after takeoff. As a result of her actions in the accident, Barbara Jane Harrison is awarded a posthumous George Cross, the only GC awarded to a woman in peacetime.
September 6 » Swaziland becomes independent.
October 2 » Mexican President Gustavo Díaz Ordaz orders soldiers to suppress a demonstration of unarmed students, ten days before the start of the 1968 Summer Olympics.
October 16 » Yasunari Kawabata becomes the first Japanese person to be awarded the Nobel Prize in Literature.
November 17 » Viewers of the Raiders–Jets football game in the eastern United States are denied the opportunity to watch its exciting finish when NBC broadcasts Heidi instead, prompting changes to sports broadcasting in the U.S.
When copying data from this family tree, please include a reference to the origin: Louis Kramer, "Kramer Family Tree", database, Genealogy Online (https://www.genealogieonline.nl/kramer_stamboom/I600250.php : accessed January 25, 2026), "Roelofke Hiemstra (1896-1968)".
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