February 15 » The association football club Alianza Lima is founded in Lima, Peru, under the name Sport Alianza.
June 11 » The boundaries of the Colony of New Zealand are extended by the UK to include the Cook Islands.
September 17 » Second Boer War: A Boer column defeats a British force at the Battle of Blood River Poort.
October 24 » Annie Edson Taylor becomes the first person to go over Niagara Falls in a barrel.
November 8 » Gospel riots: Bloody clashes take place in Athens following the translation of the Gospels into demotic Greek.
December 12 » Guglielmo Marconi receives the first transatlantic radio signal (the letter "S" [***] in Morse Code), at Signal Hill in St John's, Newfoundland.
Day of marriage March 28, 1928
The temperature on March 28, 1928 was between -0.8 °C and 10.7 °C and averaged 5.9 °C. There was 3.4 mm of rain. There was 3.2 hours of sunshine (25%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
March 12 » In California, the St. Francis Dam fails; the resulting floods kill 431 people.
May 15 » Walt Disney character Mickey Mouse premieres in his first cartoon, "Plane Crazy".
June 9 » Charles Kingsford Smith completes the first trans-Pacific flight in a Fokker Trimotor monoplane, the Southern Cross.
October 2 » The "Prelature of the Holy Cross and the Work of God", commonly known as Opus Dei, is founded.
October 10 » Chiang Kai-shek becomes Chairman of the Republic of China.
November 15 » The RNLI lifeboat Mary Stanford capsized in Rye Harbour with the loss of the entire 17-man crew.
Day of death December 20, 1956
The temperature on December 20, 1956 was between 3.4 °C and 4.9 °C and averaged 4.0 °C. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 28 » Elvis Presley makes his first national television appearance.
February 20 » The United States Merchant Marine Academy becomes a permanent Service Academy.
April 2 » As the World Turns and The Edge of Night premiere on CBS. The two soaps become the first daytime dramas to debut in the 30-minute format.
July 26 » Following the World Bank's refusal to fund building the Aswan Dam, Egyptian leader Gamal Abdel Nasser nationalizes the Suez Canal, sparking international condemnation.
September 13 » The IBM 305 RAMAC is introduced, the first commercial computer to use disk storage.
November 7 » Hungarian Revolution: János Kádár returns to Budapest in a Soviet armored convoy, officially taking office as the next Hungarian leader. By this point, most armed resistance has been defeated.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I4202.php : accessed January 28, 2026), "Leonardus Andreas Keijsper (1901-1956)".
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