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 » 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.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
December 30 » The British Colony of Natal annexes Zululand.
Day of death December 9, 1956
The temperature on December 9, 1956 was between 7.1 °C and 8.3 °C and averaged 7.6 °C. There was 0.3 mm of rain during 2.8 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 20 » The United States Merchant Marine Academy becomes a permanent Service Academy.
March 23 » Pakistan becomes the first Islamic republic in the world. This date is now celebrated as Republic Day in Pakistan.
July 30 » A joint resolution of the U.S. Congress is signed by President Dwight D. Eisenhower, authorizing In God We Trust as the U.S. national motto.
August 6 » After going bankrupt in 1955, the American broadcaster DuMont Television Network makes its final broadcast, a boxing match from St. Nicholas Arena in New York in the Boxing from St. Nicholas Arena series.
August 27 » The nuclear power station at Calder Hall in the United Kingdom was connected to the national power grid becoming the world's first commercial nuclear power station to generate electricity on an industrial scale.
September 27 » USAF Captain Milburn G. Apt becomes the first person to exceed Mach 3. Shortly thereafter, the Bell X-2 goes out of control and Captain Apt is killed.
When copying data from this family tree, please include a reference to the origin: W. Rovers, "Family tree Ro(o)vers", database, Genealogy Online (https://www.genealogieonline.nl/stamboom_rovers/I3483.php : accessed January 15, 2026), "Hubertus Arnoldus Josephus Cornelius Caarls (1897-1956)".
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