The temperature on August 14, 1880 was about 24.6 °C. The air pressure was 1 kgf/m2 and came mainly from the north-northeast. The airpressure was 76 cm mercury. The atmospheric humidity was 71%. Source: KNMI
In The Netherlands , there was from August 20, 1879 to April 23, 1883 the cabinet Van Lijnden van Sandenburg, with Mr. C.Th. baron Van Lijnden van Sandenburg (conservatief-AR) as prime minister.
February 13 » Thomas Edison observes Thermionic emission.
May 11 » Seven people are killed in the Mussel Slough Tragedy, a gun battle in California.
May 13 » In Menlo Park, New Jersey, Thomas Edison performs the first test of his electric railway.
June 29 » France annexes Tahiti, renaming the independent Kingdom of Tahiti as "Etablissements de français de l'Océanie".
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
November 11 » Australian bushranger Ned Kelly is hanged at Melbourne Gaol.
Day of marriage May 16, 1906
The temperature on May 16, 1906 was between 5.0 °C and 11.9 °C and averaged 8.1 °C. There was 1.8 mm of rain. There was 0.6 hours of sunshine (4%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 17, 1905 to February 11, 1908 the cabinet De Meester, with Mr. Th. de Meester (unie-liberaal) as prime minister.
April 18 » An earthquake and fire destroy much of San Francisco, California.
May 6 » The Russian Constitution of 1906 is adopted (on April 23 by the Julian calendar).
June 30 » The United States Congress passes the Meat Inspection Act and Pure Food and Drug Act.
August 13 » The all black infantrymen of the U.S. Army's 25th Infantry Regiment are accused of killing a white bartender and wounding a white police officer in Brownsville, Texas, despite exculpatory evidence; all are later dishonorably discharged. (Their records were later restored to reflect honorable discharges but there were no financial settlements.)
September 5 » The first legal forward pass in American football is thrown by Bradbury Robinson of St. Louis University to teammate Jack Schneider in a 22–0 victory over Carroll College (Wisconsin).
September 24 » Racial tensions exacerbated by rumors lead to the Atlanta Race Riot, further increasing racial segregation.
Day of death December 24, 1973
The temperature on December 24, 1973 was between 3.5 °C and 5.2 °C and averaged 4.3 °C. There was 0.9 mm of rain during 1.2 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from Thursday, July 20, 1972 to Friday, May 11, 1973 the cabinet Biesheuvel II, with Mr. B.W. Biesheuvel (ARP) as prime minister.
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
June 20 » Snipers fire upon left-wing Peronists in Buenos Aires, Argentina, in what is known as the Ezeiza massacre. At least 13 are killed and more than 300 are injured.
July 13 » Watergate scandal: Alexander Butterfield reveals the existence of a secret Oval Office taping system to investigators for the Senate Watergate Committee.
August 2 » A flash fire kills 51 people at the Summerland amusement centre at Douglas, Isle of Man.
September 20 » Singer Jim Croce, songwiter and musician Maury Muehleisen and four others die when their light aircraft crashes on takeoff at Natchitoches Regional Airport in Louisiana.
October 16 » Henry Kissinger and Lê Đức Thọ are awarded the Nobel Peace Prize.
November 24 » A national speed limit is imposed on the Autobahn in Germany because of the 1973 oil crisis. The speed limit lasts only four months.
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/I104979.php : accessed February 13, 2026), "Johannes Koopal (1880-1973)".
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