January 1 » New York, New York annexes land from surrounding counties, creating the City of Greater New York. The four initial boroughs, Manhattan, Brooklyn, Queens, and The Bronx, are joined on January 25 by Staten Island to create the modern city of five boroughs.
February 7 » Dreyfus affair: Émile Zola is brought to trial for libel for publishing J'Accuse…!.
April 22 » Spanish–American War: The USSNashville captures a Spanish merchant ship.
April 25 » Spanish–American War: The United States declares war on Spain.
June 21 » The United States captures Guam from Spain. The few warning shots fired by the U.S. naval vessels are misinterpreted as salutes by the Spanish garrison, which was unaware that the two nations were at war.
August 23 » The Southern Cross Expedition, the first British venture of the Heroic Age of Antarctic Exploration, departs from London.
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.
March 21 » The Los Angeles Rams sign Kenny Washington, making him the first African American player in professional American football since 1933.
May 21 » Physicist Louis Slotin is fatally irradiated in a criticality incident during an experiment with the demon core at Los Alamos National Laboratory.
June 18 » Dr. Ram Manohar Lohia, a Socialist, calls for a Direct Action Day against the Portuguese in Goa.
September 19 » The Council of Europe is founded following a speech by Winston Churchill at the University of Zurich.
October 16 » Nuremberg trials: Ten defendants found guilty by the International Military Tribunal are executed by hanging.
December 11 » The United Nations International Children's Emergency Fund (UNICEF) is established.
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.
June 9 » The Church of Jesus Christ of Latter-day Saints opens its priesthood to "all worthy men", ending a 148-year-old policy of excluding black men.
June 25 » The rainbow flag representing gay pride is flown for the first time during the San Francisco Gay Freedom Day Parade.
July 10 » ABC World News Tonight premieres on ABC.
August 13 » One hundred fifty Palestinians in Beirut are killed in a terrorist attack during the second phase of the Lebanese Civil War.
November 18 » In Jonestown, Guyana, Jim Jones led his Peoples Temple to a mass murder–suicide that claimed 918 lives in all, 909 of them in Jonestown itself, including over 270 children. Congressman Leo Ryan is murdered by members of the Peoples Temple hours earlier.
December 22 » The pivotal Third Plenum of the 11th National Congress of the Communist Party of China is held in Beijing, with Deng Xiaoping reversing Mao-era policies to pursue a program for Chinese economic reform.
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 February 25, 2026), "Hendrika Johanna Jacoba "Riet" Wolff (1898-1978)".
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