February 7 » Dreyfus affair: Émile Zola is brought to trial for libel for publishing J'Accuse…!.
June 17 » The United States Navy Hospital Corps is established.
June 22 » Spanish–American War: In a chaotic operation, 6,000 men of the U.S. Fifth Army Corps begins landing at Daiquirí, Cuba, about 16 miles (26km) east of Santiago de Cuba. Lt. Gen. Arsenio Linares y Pombo of the Spanish Army outnumbers them two-to-one, but does not oppose the landings.
July 1 » Spanish–American War: The Battle of San Juan Hill is fought in Santiago de Cuba, Cuba.
August 29 » The Goodyear tire company is founded.
October 6 » Phi Mu Alpha Sinfonia, the largest American music fraternity, is founded at the New England Conservatory of Music.
Day of marriage December 27, 1946
The temperature on December 27, 1946 was between 0.5 °C and 6.0 °C and averaged 3.1 °C. There was 0.5 mm of rain during 0.8 hours. There was 2.9 hours of sunshine (37%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
In The Netherlands , there was from July 3, 1946 to August 7, 1948 the cabinet Beel I, with Dr. L.J.M. Beel (KVP) as prime minister.
February 8 » The People's Republic of Korea is dissolved in the North, establishing the communist-controlled Provisional People's Committee of North Korea.
July 25 » The Crossroads Baker device is the first underwater nuclear weapon test.
August 7 » The government of the Soviet Union presented a note to its Turkish counterparts which refuted the latter's sovereignty over the Turkish Straits, thus beginning the Turkish Straits crisis.
August 8 » First flight of the Convair B-36, the world's first mass-produced nuclear weapon delivery vehicle, the heaviest mass-produced piston-engined aircraft, with the longest wingspan of any military aircraft, and the first bomber with intercontinental range.
October 22 » Operation Osoaviakhim takes place, recruiting of thousands of military-related technical specialists from the Soviet occupation zone of post–World War II Germany for employment in the Soviet Union.
December 19 » Start of the First Indochina War.
Day of death October 31, 1978
The temperature on October 31, 1978 was between 5.3 °C and 11.5 °C and averaged 8.8 °C. There was 4.2 hours of sunshine (43%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 18 » The European Court of Human Rights finds the United Kingdom's government guilty of mistreating prisoners in Northern Ireland, but not guilty of torture.
August 17 » Double Eagle II becomes first balloon to cross the Atlantic Ocean when it lands in Miserey, France near Paris, 137 hours after leaving Presque Isle, Maine.
August 26 » Papal conclave: Albino Luciani is elected as Pope John Paul I.
October 21 » Australian civilian pilot Frederick Valentich vanishes over the Bass Strait south of Melbourne, after reporting contact with an unidentified aircraft.
November 15 » A chartered Douglas DC-8 crashes near Colombo, Sri Lanka, killing 183.
December 16 » Cleveland, Ohio becomes the first major American city to default on its financial obligations since the Great Depression.
When copying data from this family tree, please include a reference to the origin: Hans Opperman, "Family tree Opperman", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-opperman/I4083.php : accessed January 6, 2026), "Hendrika Johanna Jacoba "Riet" Wolff (1898-1978)".
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