The temperature on October 7, 1880 was about 11.3 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northeast. The airpressure was 75 cm mercury. The atmospheric humidity was 90%. 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.
June 24 » First performance of O Canada at the Congrès national des Canadiens-Français. The song would later become the national anthem of Canada.
June 29 » France annexes Tahiti, renaming the independent Kingdom of Tahiti as "Etablissements de français de l'Océanie".
July 27 » Second Anglo-Afghan War: Battle of Maiwand: Afghan forces led by Mohammad Ayub Khan defeat the British Army in battle near Maiwand, Afghanistan.
August 14 » Construction of Cologne Cathedral, the most famous landmark in Cologne, Germany, is completed.
Day of marriage May 19, 1909
The temperature on May 19, 1909 was between 4.4 °C and 17.7 °C and averaged 11.7 °C. There was 9.6 hours of sunshine (61%). The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
February 12 » The National Association for the Advancement of Colored People (NAACP) is founded.
February 23 » The AEA Silver Dart makes the first powered flight in Canada and the British Empire.
March 23 » Theodore Roosevelt leaves New York for a post-presidency safari in Africa. The trip is sponsored by the Smithsonian Institution and National Geographic Society.
July 16 » Persian Constitutional Revolution: Mohammad Ali Shah Qajar is forced out as Shah of Persia and is replaced by his son Ahmad Shah Qajar.
August 19 » The first automobile race at the Indianapolis Motor Speedway.
August 30 » Burgess Shale fossils are discovered by Charles Doolittle Walcott.
Day of death June 22, 1973
The temperature on June 22, 1973 was between 11.9 °C and 23.3 °C and averaged 18.3 °C. There was 14.2 hours of sunshine (85%). The almost cloudless was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. 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.
February 22 » Cold War: Following President Richard Nixon's visit to the People's Republic of China, the two countries agree to establish liaison offices.
March 1 » Black September storms the Saudi embassy in Khartoum, Sudan, resulting in the assassination of three Western hostages.
May 17 » Watergate scandal: Televised hearings begin in the United States Senate.
August 23 » A bank robbery gone wrong in Stockholm, Sweden, turns into a hostage crisis; over the next five days the hostages begin to sympathise with their captors, leading to the term "Stockholm syndrome".
November 1 » Watergate scandal: Leon Jaworski is appointed as the new Watergate Special Prosecutor.
November 4 » The Netherlands experiences the first Car-Free Sunday caused by the 1973 oil crisis. Highways are used only by cyclists and roller skaters.
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/I89357.php : accessed February 10, 2026), "Simon Haverkamp (1880-1973)".
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