February 23 » Cuba leases Guantánamo Bay to the United States "in perpetuity".
June 16 » The Ford Motor Company is incorporated.
June 19 » Benito Mussolini, at the time a radical Socialist, is arrested by Bern police for advocating a violent general strike.
September 11 » The first race at the Milwaukee Mile in West Allis, Wisconsin is held. It is the oldest major speedway in the world.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
December 14 » The Wright brothers make their first attempt to fly with the Wright Flyer at Kitty Hawk, North Carolina.
Day of marriage September 15, 1926
The temperature on September 15, 1926 was between 10.3 °C and 18.9 °C and averaged 15.6 °C. There was 1.9 mm of rain. There was -0.1 hours of sunshine (0%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
January 8 » Crown Prince Nguyễn Phúc Vĩnh Thuỵ ascends the throne to become the last monarch of Vietnam.
April 21 » Al-Baqi cemetery, former site of the mausoleum of four Shi'a Imams, is leveled to the ground by Wahhabis.
May 9 » Admiral Richard E. Byrd and Floyd Bennett claim to have flown over the North Pole (later discovery of Byrd's diary appears to cast some doubt on the claim.)
May 12 » The Italian-built airship Norge becomes the first vessel to fly over the North Pole.
June 23 » The College Board administers the first SAT exam.
August 20 » Japan's public broadcasting company, Nippon Hōsō Kyōkai (NHK) is established.
Day of death January 30, 1930
The temperature on January 30, 1930 was between -0.3 °C and 5.2 °C and averaged 2.6 °C. There was 1.8 mm of rain during 2.7 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
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.
February 10 » The Việt Nam Quốc Dân Đảng launches the failed Yên Bái mutiny in hope to overthrow French protectorate over Vietnam.
March 31 » The Motion Picture Production Code is instituted, imposing strict guidelines on the treatment of sex, crime, religion and violence in film, in the U.S., for the next thirty-eight years.
April 6 » At the end of the Salt March, Gandhi raises a lump of mud and salt and declares, "With this, I am shaking the foundations of the British Empire."
May 24 » Amy Johnson lands in Darwin, Northern Territory, becoming the first woman to fly solo from England to Australia (she left on May 5 for the 11,000 mile flight).
July 7 » Industrialist Henry J. Kaiser begins construction of Boulder Dam (now known as Hoover Dam).
December 16 » Bank robber Herman Lamm and members of his crew are killed by a 200-strong posse, following a botched bank robbery, in Clinton, Indiana.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I173017.php : accessed February 16, 2026), "Grietje Geertsma (1903-1930)".
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