January 1 » The first American college football bowl game, the Rose Bowl between Michigan and Stanford, is held in Pasadena, California.
March 18 » Macario Sakay issues Presidential Order No. 1 of his Tagalog Republic.
April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
May 17 » Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
August 22 » Theodore Roosevelt becomes the first President of the United States to make a public appearance in an automobile.
October 24 » Guatemala's Santa María Volcano begins to erupt, becoming the third-largest eruption of the 20th century.
Day of marriage June 9, 1927
The temperature on June 9, 1927 was between 3.6 °C and 16.4 °C and averaged 11.2 °C. There was 0.3 mm of rain. There was 10.7 hours of sunshine (64%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
May 20 » Treaty of Jeddah: The United Kingdom recognizes the sovereignty of King Ibn Saud in the Kingdoms of Hejaz and Nejd, which later merge to become the Kingdom of Saudi Arabia.
May 27 » The Ford Motor Company ceases manufacture of the Ford Model T and begins to retool plants to make the Ford Model A.
July 16 » Augusto César Sandino leads a raid on U.S. Marines and Nicaraguan Guardia Nacional that had been sent to apprehend him in the village of Ocotal, but is repulsed by one of the first dive-bombing attacks in history.
August 23 » Italian anarchists Sacco and Vanzetti are executed after a lengthy, controversial trial.
December 8 » The Brookings Institution, one of the United States' oldest think tanks, is founded through the merger of three organizations that had been created by philanthropist Robert S. Brookings.
December 30 » The Ginza Line, the first subway line in Asia, opens in Tokyo, Japan.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I5591.php : accessed February 2, 2026), "Heerke Halma (1902-)".
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