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.
June 24 » King Edward VII of the United Kingdom develops appendicitis, delaying his coronation.
October 24 » Guatemala's Santa María Volcano begins to erupt, becoming the third-largest eruption of the 20th century.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of marriage February 25, 1941
The temperature on February 25, 1941 was between -3.1 °C and 3.7 °C and averaged 0.1 °C. There was 2.6 hours of sunshine (25%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from September 3, 1940 to July 27, 1941 the cabinet Gerbrandy I, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
In The Netherlands , there was from July 27, 1941 to February 23, 1945 the cabinet Gerbrandy II, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
May 1 » World War II: German forces launch a major attack during the siege of Tobruk.
May 27 » World War II: U.S. President Franklin D. Roosevelt proclaims an "unlimited national emergency".
June 23 » The Lithuanian Activist Front declares independence from the Soviet Union and forms the Provisional Government of Lithuania; it lasts only briefly as the Nazis will occupy Lithuania a few weeks later.
July 5 » World War II: Operation Barbarossa: German troops reach the Dnieper river.
August 14 » World War II: Winston Churchill and Franklin D. Roosevelt sign the Atlantic Charter of war stating postwar aims.
October 9 » A coup in Panama declares Ricardo Adolfo de la Guardia Arango the new president.
Day of death June 6, 1955
The temperature on June 6, 1955 was between 10.0 °C and 22.9 °C and averaged 17.4 °C. There was 11.8 hours of sunshine (71%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
April 12 » The polio vaccine, developed by Dr. Jonas Salk, is declared safe and effective.
June 2 » The USSR and Yugoslavia sign the Belgrade declaration and thus normalize relations between both countries, discontinued since 1948.
June 26 » The South African Congress Alliance adopts the Freedom Charter at the Congress of the People in Kliptown.
September 6 » Istanbul's Greek, Jewish, and Armenian minorities are the target of a government-sponsored pogrom; dozens are killed in ensuing riots.
October 26 » After the last Allied troops have left the country, and following the provisions of the Austrian Independence Treaty, Austria declares that it will never join a military alliance.
October 26 » Ngô Đình Diệm declares himself Premier of South Vietnam.
When copying data from this family tree, please include a reference to the origin: Bob Smith, "Family tree Smith", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-smith/I6091.php : accessed February 24, 2026), "Siegfried Kolmus (1902-1955)".
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