April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
May 26 » The original manuscript of William Bradford's history, "Of Plymouth Plantation" is returned to the Governor of Massachusetts by the Bishop of London after being taken during the American Revolutionary War.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of death March 27, 1973
The temperature on March 27, 1973 was between -0.5 °C and 8.9 °C and averaged 4.6 °C. There was 0.1 mm of rain during 0.1 hours. There was 1.1 hours of sunshine (9%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) 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.
March 24 » Kenyan athlete Kip Keino defeats Jim Ryun at the first-ever professional track meet in Los Angeles.
April 4 » The Twin Towers of the World Trade Center in New York City are officially dedicated.
June 9 » In horse racing, Secretariat wins the U.S. Triple Crown.
October 6 » Egypt and Syria launch coordinated attacks against Israel, beginning the Yom Kippur War.
October 8 » Spyros Markezinis begins his 48-day term as prime minister in an abortive attempt to lead Greece to parliamentary rule.
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: Nienke Oudbier, "Descendants van de Vlag1", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oudbier/I852.php : accessed February 4, 2026), "Maria Jacoba Hendrika de Klerk (1897-1973)".
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