The temperature on April 21, 1931 was between 2.6 °C and 11.6 °C and averaged 6.7 °C. There was 7.2 hours of sunshine (51%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
March 26 » Ho Chi Minh Communist Youth Union is founded in Vietnam.
March 31 » A Transcontinental & Western Air airliner crashes near Bazaar, Kansas, killing eight, including University of Notre Dame head football coach Knute Rockne.
May 29 » Michele Schirru, a citizen of the United States, is executed by Italian military firing squad for intent to kill Benito Mussolini.
November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
December 9 » The Constituent Cortes approves a constitution which establishes the Second Spanish Republic.
Day of marriage July 6, 1950
The temperature on July 6, 1950 was between 14.2 °C and 21.0 °C and averaged 16.7 °C. There was 1.7 mm of rain during 0.8 hours. There was 3.5 hours of sunshine (21%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 23 » The Knesset resolves that Jerusalem is the capital of Israel.
September 4 » Darlington Raceway is the site of the inaugural Southern 500, the first 500-mile NASCAR race.
November 1 » Pope Pius XII claims papal infallibility when he formally defines the dogma of the Assumption of Mary.
November 8 » Korean War: United States Air Force Lt. Russell J. Brown, while piloting an F-80 Shooting Star, shoots down two North Korean MiG-15s in the first jet aircraft-to-jet aircraft dogfight in history.
November 13 » General Carlos Delgado Chalbaud, President of Venezuela, is assassinated in Caracas.
November 25 » The Great Appalachian Storm of November 1950 impacts 22 American states, killing 353 people, injuring over 160, and causing US$66.7 million in damages (1950 dollars).
Day of death April 4, 1991
The temperature on April 4, 1991 was between 2.3 °C and 12.9 °C and averaged 7.9 °C. There was 0.5 mm of rain during 3.6 hours. There was 7.1 hours of sunshine (54%). The partly clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
January 9 » Representatives from the United States and Iraq meet at the Geneva Peace Conference to try to find a peaceful resolution to the Iraqi invasion of Kuwait.
January 15 » Elizabeth II, in her capacity as Queen of Australia, signs letters patent allowing Australia to become the first Commonwealth realm to institute its own Victoria Cross in its honours system.
February 18 » The IRA explodes bombs in the early morning at Paddington station and Victoria station in London.
May 26 » Lauda Air Flight 004 breaks apart in mid-air and crashes in the Phu Toei National Park in Thailand, killing all 223 people on board.
October 5 » An Indonesian Air Force C-130 crash kills 135 people.
December 5 » Leonid Kravchuk is elected the first president of Ukraine.
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/I3758.php : accessed March 15, 2026), "Maria Anna Frederica "Ria" Kok (1931-1991)".
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