January 31 » Czechoslav Trade Union Association is founded in Prague.
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.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
September 1 » The Tremont Street Subway in Boston opens, becoming the first underground rapid transit system in North America.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of death December 23, 1965
The temperature on December 23, 1965 was between 0.4 °C and 4.4 °C and averaged 3.1 °C. There was 9.5 mm of rain during 10.7 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
February 19 » Colonel Phạm Ngọc Thảo of the Army of the Republic of Vietnam, and a communist spy of the North Vietnamese Viet Minh, along with Generals Lâm Văn Phát and Trần Thiện Khiêm, all Catholics, attempt a coup against the military junta of the Buddhist Nguyễn Khánh.
April 21 » The 1964–1965 New York World's Fair opens for its second and final season.
May 12 » The Soviet spacecraft Luna 5 crashes on the Moon.
August 15 » The Beatles play to nearly 60,000 fans at Shea Stadium in New York City, an event later regarded as the birth of stadium rock.
October 21 » Comet Ikeya–Seki approaches perihelion, passing 450,000 kilometers (279,617 miles) from the sun.
December 9 » Kecksburg UFO incident: A fireball is seen from Michigan to Pennsylvania; witnesses report something crashing in the woods near Pittsburgh.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Phoppe Simons", database, Genealogy Online (https://www.genealogieonline.nl/phoppe-simons/I80227.php : accessed October 22, 2026), "Jan Olofsen (1897-1965)".
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