The temperature on March 1, 1911 was between 3.3 °C and 9.2 °C and averaged 6.1 °C. There was 1.4 mm of rain. There was 6.8 hours of sunshine (63%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the west-northwest. Source: KNMI
January 12 » The University of the Philippines College of Law is formally established; three future Philippine presidents are among the first enrollees.
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
June 22 » Mexican Revolution: Government forces bring an end to the Magonista rebellion of 1911 in the Second Battle of Tijuana.
December 9 » A mine explosion near Briceville, Tennessee, kills 84 miners despite rescue efforts led by the United States Bureau of Mines.
December 29 » Mongolia gains independence from the Qing dynasty, enthroning 8th Jebtsundamba Khutughtu as Khagan of Mongolia.
Day of marriage November 15, 1941
The temperature on November 15, 1941 was between -6.9 °C and -1.4 °C and averaged -4.0 °C. There was 2.9 hours of sunshine (33%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. 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.
January 5 » 37-year-old pilot Amy Johnson, the first woman to fly solo from London to Australia, disappears after bailing out of her plane over the River Thames, and is presumed dead.
January 18 » World War II: British troops launch a general counter-offensive against Italian East Africa.
March 2 » World War II: First German military units enter Bulgaria after it joins the Axis Pact.
May 27 » World War II: U.S. President Franklin D. Roosevelt proclaims an "unlimited national emergency".
July 5 » World War II: Operation Barbarossa: German troops reach the Dnieper river.
December 8 » World War II: Japanese forces simultaneously invade Shanghai International Settlement, Malaya, Thailand, Hong Kong, the Philippines, and the Dutch East Indies. (See December 7 for the concurrent attack on Pearl Harbor in the Western Hemisphere.)
Day of death March 20, 1985
The temperature on March 20, 1985 was between -1.4 °C and 2.5 °C and averaged 0.4 °C. There was 1.4 mm of rain during 6.1 hours. The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 5 » Ugo Vetere, then the mayor of Rome, and Chedli Klibi, then the mayor of Carthage meet in Tunis to sign a treaty of friendship officially ending the Third Punic War which lasted 2,131 years.
February 19 » Iberia Airlines Boeing 727 crashes into Mount Oiz in Spain, killing 148.
March 16 » Associated Press newsman Terry Anderson is taken hostage in Beirut. He is released on December 4, 1991.
May 20 » Radio Martí, part of the Voice of America service, begins broadcasting to Cuba.
May 29 » Amputee Steve Fonyo completes cross-Canada marathon at Victoria, British Columbia, after 14 months.
May 29 » Heysel Stadium disaster: Thirty-nine association football fans die and hundreds are injured when a dilapidated retaining wall collapses.
When copying data from this family tree, please include a reference to the origin: Boens, "Boens family tree", database, Genealogy Online (https://www.genealogieonline.nl/boens-stamboom/I3453.php : accessed February 5, 2026), "Petrus ROOSEN (1911-1985)".
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