The temperature on April 9, 1914 was between 5.7 °C and 12.1 °C and averaged 9.3 °C. There was 0.1 mm of rain. There was 4.8 hours of sunshine (36%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
August 9 » Start of the Battle of Mulhouse, part of a French attempt to recover the province of Alsace and the first French offensive of World War I.
August 14 » World War I: Start of the Battle of Lorraine, an unsuccessful French offensive designed to recover the lost province of Moselle from Germany.
August 24 » World War I: German troops capture Namur.
August 26 » World War I: During the retreat from Mons, the British II Corps commanded by General Sir Horace Smith-Dorrien fought a vigorous and successful defensive action at Le Cateau.
October 18 » The Schoenstatt Movement is founded in Germany.
October 27 » First World War: The new British battleship HMS Audacious is sunk by a minefield laid by the armed German merchant-cruiser Berlin.
Day of marriage July 8, 1938
The temperature on July 8, 1938 was between 10.9 °C and 20.4 °C and averaged 16.4 °C. There was 0.7 mm of rain during 0.4 hours. There was 2.1 hours of sunshine (13%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
April 30 » The animated cartoon short Porky's Hare Hunt debuts in movie theaters, introducing Happy Rabbit, an early version of Bugs Bunny.
July 28 » Hawaii Clipper disappears between Guam and Manila as the first loss of an airliner in trans-Pacific China Clipper service.
July 31 » Bulgaria signs a non-aggression pact with Greece and other states of Balkan Antanti (Turkey, Romania, Yugoslavia).
August 20 » Lou Gehrig hits his 23rd career grand slam, a record that stood for 75 years until it was broken by Alex Rodriguez.
September 12 » Adolf Hitler demands autonomy and self-determination for the Germans of the Sudetenland region of Czechoslovakia.
November 9 » The Nazi German diplomat Ernst vom Rath dies from gunshot wounds by Herschel Grynszpan, an act which the Nazis used as an excuse to instigate the 1938 national pogrom, also known as Kristallnacht.
Day of death June 20, 1982
The temperature on June 20, 1982 was between 10.1 °C and 19.5 °C and averaged 14.8 °C. There was 6.6 hours of sunshine (39%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. Source: KNMI
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
In The Netherlands , there was from Saturday, May 29, 1982 to Thursday, November 4, 1982 the cabinet Van Agt III, with Mr. A.A.M. van Agt (CDA) as prime minister.
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.
March 22 » NASA's Space Shuttle Columbia is launched from the Kennedy Space Center on its third mission, STS-3.
May 29 » Pope John Paul II becomes the first pontiff to visit Canterbury Cathedral.
June 3 » The Israeli ambassador to the United Kingdom, Shlomo Argov, is shot on a London street; he survives but is left paralysed.
July 20 » Hyde Park and Regent's Park bombings: The Provisional IRA detonates two bombs in Hyde Park and Regent's Park in central London, killing eight soldiers, wounding forty-seven people, and leading to the deaths of seven horses.
August 27 » Turkish military diplomat Colonel Atilla Altıkat is shot and killed in Ottawa. Justice Commandos of the Armenian Genocide claim to be avenging the massacre of 1⁄2 million Armenians in the 1915 Armenian Genocide.
November 13 » The Vietnam Veterans Memorial is dedicated in Washington, D.C. after a march to its site by thousands of Vietnam War veterans.
When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I12422.php : accessed September 27, 2026), "Omer Polydoor de Groep (1914-1982)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.