April 26 » Atlético Madrid Association football club is founded
June 16 » Roald Amundsen leaves Oslo, Norway, to commence the first east–west navigation of the Northwest Passage.
July 19 » Maurice Garin wins the first Tour de France.
August 2 » The Ilinden–Preobrazhenie Uprising against the Ottoman Empire begins.
October 6 » The High Court of Australia sits for the first time.
October 10 » The Women's Social and Political Union is founded in support of the enfranchisement of British women.
Day of marriage August 6, 1931
The temperature on August 6, 1931 was between 15.5 °C and 22.9 °C and averaged 17.8 °C. There was 1.6 mm of rain during 0.8 hours. There was 1.0 hours of sunshine (7%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 11 » Ready for Labour and Defence of the USSR, abbreviated as GTO, is introduced in the Soviet Union.
March 31 » A Transcontinental & Western Air airliner crashes near Bazaar, Kansas, killing eight, including University of Notre Dame head football coach Knute Rockne.
March 31 » An earthquake in Nicaragua destroys Managua; killing 2,000.
April 14 » The Spanish Cortes deposes King Alfonso XIII and proclaims the Second Spanish Republic.
July 16 » Emperor Haile Selassie signs the first constitution of Ethiopia.
November 7 » The Chinese Soviet Republic is proclaimed on the anniversary of the October Revolution.
Day of death May 23, 1970
The temperature on May 23, 1970 was between 3.6 °C and 16.1 °C and averaged 10.6 °C. There was 5.7 hours of sunshine (36%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the west. Source: KNMI
January 5 » The 7.1 Mw Tonghai earthquake shakes Tonghai County, Yunnan province, China, with a maximum Mercalli intensity of X (Extreme). Between 10,000 and 15,000 people are known to have been killed and about another 26,000 are injured.
April 26 » The Convention Establishing the World Intellectual Property Organization enters into force.
June 21 » Penn Central declares Section 77 bankruptcy in what was the largest U.S. corporate bankruptcy to date.
September 19 » Michael Eavis hosts the first Glastonbury Festival.
November 4 » Salvador Allende takes office as President of Chile, the first Marxist to become president of a Latin American country through open elections.
December 21 » First flight of F-14 multi-role combat aircraft.
When copying data from this family tree, please include a reference to the origin: Nienke Oudbier, "Descendants van de Vlag1", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-oudbier/I3932.php : accessed February 17, 2026), "Gerrit Proper (1903-1970)".
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.