April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
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 marriage May 17, 1929
The temperature on May 17, 1929 was between 4.8 °C and 12.5 °C and averaged 8.9 °C. There was 0.6 mm of rain. There was 0.2 hours of sunshine (1%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from March 8, 1926 to August 10, 1929 the cabinet De Geer I, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 1 » The former municipalities of Point Grey, British Columbia and South Vancouver, British Columbia are amalgamated into Vancouver.
April 6 » Huey P. Long, Governor of Louisiana, is impeached by the Louisiana House of Representatives.
July 27 » The Geneva Convention of 1929, dealing with treatment of prisoners-of-war, is signed by 53 nations.
August 23 » Hebron Massacre during the 1929 Palestine riots: Arab attack on the Jewish community in Hebron in the British Mandate of Palestine, continuing until the next day, resulted in the death of 65–68 Jews and the remaining Jews being forced to leave the city.
December 3 » President Herbert Hoover delivers his first State of the Union message to Congress. It was presented in the form of a written message rather than a speech.
December 24 » A four alarm fire breaks out in the West Wing of the White House in Washington, D.C.
When copying data from this family tree, please include a reference to the origin: Coos van Spijk, "Family tree of Spijk and her many ancestors", database, Genealogy Online (https://www.genealogieonline.nl/van-spijk-stamboom/I35902.php : accessed February 4, 2026), "Lena Cornelia den Hartigh (1897-????)".
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