The temperature on July 28, 1910 was between 9.9 °C and 22.0 °C and averaged 16.7 °C. There was 5.6 hours of sunshine (36%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
June 19 » The first Father's Day is celebrated in Spokane, Washington.
June 25 » Igor Stravinsky's ballet The Firebird is premiered in Paris, bringing him to prominence as a composer.
August 20 » Extremely dry and windy weather in the Inland Northwest of the United States causes several small wildfires to coalesce into the Great Fire of 1910, burning approximately 3million acres (12,000km) and killing 87 people.
September 22 » The Duke of York's Picture House opens in Brighton, now the oldest continually operating cinema in Britain.
October 15 » Airship America is launched from New Jersey in the first attempt to cross the Atlantic by a powered aircraft.
November 21 » Sailors on board Brazil's warships including the Minas Gerais, São Paulo, and Bahia, violently rebel in what is now known as the Revolta da Chibata (Revolt of the Lash).
Day of marriage April 15, 1939
The temperature on April 15, 1939 was between 8.9 °C and 13.5 °C and averaged 10.7 °C. There was 1.7 hours of sunshine (12%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
January 13 » The Black Friday bushfires burn 20,000 square kilometers of land in Australia, claiming the lives of 71 people.
February 10 » Spanish Civil War: The Nationalists conclude their conquest of Catalonia and seal the border with France.
April 10 » Alcoholics Anonymous, A.A.'s "Big Book", is first published.
May 14 » Lina Medina becomes the youngest confirmed mother in medical history at the age of five.
October 15 » The New York Municipal Airport (later renamed LaGuardia Airport) is dedicated.
November 26 » Shelling of Mainila: The Soviet Army orchestrates an incident which is used to justify the start of the Winter War with Finland four days later.
Day of death August 5, 1968
The temperature on August 5, 1968 was between 16.3 °C and 25.5 °C and averaged 19.9 °C. There was 1.1 mm of rain during 1.3 hours. There was 5.3 hours of sunshine (35%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
May 26 » H-dagurinn in Iceland: Traffic changes from driving on the left to driving on the right overnight
July 18 » Intel is founded in Mountain View, California.
August 1 » The coronation is held of Hassanal Bolkiah, the 29th Sultan of Brunei.
October 2 » Mexican President Gustavo Díaz Ordaz orders soldiers to suppress a demonstration of unarmed students, ten days before the start of the 1968 Summer Olympics.
November 17 » British European Airways introduces the BAC One-Eleven into commercial service.
December 13 » Brazilian President Artur da Costa e Silva issues AI-5 (Institutional Act No. 5), enabling government by decree and suspending habeas corpus.
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/I731.php : accessed February 23, 2026), "Josephus Johannes Opperman (1910-1968)".
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