April 1 » The University of Northern Colorado was established, as the Colorado State Normal School.
April 22 » At noon, thousands rush to claim land in the Land Rush of 1889. Within hours the cities of Oklahoma City and Guthrie are formed with populations of at least 10,000.
May 6 » The Eiffel Tower is officially opened to the public at the Universal Exposition in Paris.
June 29 » Hyde Park and several other Illinois townships vote to be annexed by Chicago, forming the largest United States city in area and second largest in population at the time.
October 24 » Henry Parkes delivers the Tenterfield Oration, effectively starting the federation process in Australia.
November 11 » The State of Washington is admitted as the 42nd state of the United States.
Day of marriage June 4, 1911
The temperature on June 4, 1911 was between 12.8 °C and 25.6 °C and averaged 18.1 °C. There was 7.5 mm of rain. There was 4.4 hours of sunshine (27%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northeast. Source: KNMI
January 5 » Kappa Alpha Psi, the world's third oldest and largest black fraternity, is founded at Indiana University.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
July 1 » Germany despatches the gunship SMSPanther to Morocco, sparking the Agadir Crisis.
September 25 » An explosion of badly degraded propellant charges on board the French battleship Liberté detonates the forward ammunition magazines and destroys the ship.
October 13 » Prince Arthur, Duke of Connaught and Strathearn, becomes the first Governor General of Canada of royal descent.
November 17 » Omega Psi Phi fraternity was founded on the campus of Howard University in Washington, D.C.
Day of death December 20, 1957
The temperature on December 20, 1957 was between 3.1 °C and 7.2 °C and averaged 5.3 °C. There was 0.2 mm of rain during 0.7 hours. There was 0.1 hours of sunshine (1%). The heavily clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the south. Source: KNMI
January 1 » Lèse majesté in Thailand was strengthened to include "insult" and changed to a crime against national security, after Thai criminal code of 1956 went into effect.
March 4 » The S&P 500 stock market index is introduced, replacing the S&P 90.
October 1 » First appearance of In God we trust on U.S. paper currency.
October 4 » Sputnik 1 becomes the first artificial satellite to orbit the Earth.
October 10 » The Windscale fire results in Britain's worst nuclear accident.
October 29 » Israel's prime minister David Ben-Gurion and five of his ministers are injured when Moshe Dwek throws a grenade into Israel's Knesset.
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/I84678.php : accessed October 22, 2026), "Jan Cornelis Kappenburg (1889-1957)".
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