January 28 » The Carnegie Institution of Washington is founded in Washington, D.C. with a $10 million gift from Andrew Carnegie.
March 18 » Macario Sakay issues Presidential Order No. 1 of his Tagalog Republic.
April 20 » Pierre and Marie Curie refine radium chloride.
May 17 » Greek archaeologist Valerios Stais discovers the Antikythera mechanism, an ancient mechanical analog computer.
August 22 » Cadillac Motor Company is founded.
December 14 » The Commercial Pacific Cable Company lays the first Pacific telegraph cable, from San Francisco to Honolulu.
Day of marriage December 15, 1926
The temperature on December 15, 1926 was between -0.7 °C and 5.4 °C and averaged 2.2 °C. There was 6.2 hours of sunshine (80%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
March 16 » History of Rocketry: Robert Goddard launches the first liquid-fueled rocket, at Auburn, Massachusetts.
April 24 » The Treaty of Berlin is signed. Germany and the Soviet Union each pledge neutrality in the event of an attack on the other by a third party for the next five years.
May 18 » Evangelist Aimee Semple McPherson disappears in Venice, California.
May 28 » The 28 May 1926 coup d'état: Ditadura Nacional is established in Portugal to suppress the unrest of the First Republic.
September 8 » Germany is admitted to the League of Nations.
December 17 » Antanas Smetona assumes power in Lithuania as the 1926 coup d'état is successful.
Day of death January 10, 1956
The temperature on January 10, 1956 was between -2.1 °C and 1.8 °C and averaged -0.2 °C. There was 1.5 mm of rain during 3.8 hours. The partly or heavily clouded was. The average windspeed was 6 Bft (strong wind) and was prevailing from the south-southeast. Source: KNMI
April 19 » Actress Grace Kelly marries Prince Rainier of Monaco.
May 1 » A doctor in Japan reports an "epidemic of an unknown disease of the central nervous system", marking the official discovery of Minamata disease.
May 20 » In Operation Redwing, the first United States airborne hydrogen bomb is dropped over Bikini Atoll in the Pacific Ocean.
June 20 » A Venezuelan Super-Constellation crashes in the Atlantic Ocean off Asbury Park, New Jersey, killing 74 people.
October 28 » Elvis Presley receives a polio vaccination on national TV.
December 31 » The Romanian Television network begins its first broadcast in Bucharest.
When copying data from this family tree, please include a reference to the origin: Nico de Kunder, "Family tree De Kunder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-kunder/I3246.php : accessed October 25, 2026), "Jannetje Luchtenburg (1902-1956)".
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