The temperature on May 22, 1915 was between 13.2 °C and 25.8 °C and averaged 19.4 °C. There was 10.4 hours of sunshine (65%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. 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.
January 21 » Kiwanis International is founded in Detroit.
April 22 » The use of poison gas in World War I escalates when chlorine gas is released as a chemical weapon in the Second Battle of Ypres.
May 7 » The Republic of China accedes to 13 of the 21 Demands, extending the Empire of Japan's control over Manchuria and the Chinese economy.
May 22 » Lassen Peak erupts with a powerful force, the only volcano besides Mount St. Helens to erupt in the contiguous U.S. during the 20th century.
May 24 » World War I: Italy declares war on Austria-Hungary, joining the conflict on the side of the Allies.
July 28 » The United States begins a 19-year occupation of Haiti.
Day of marriage March 30, 1940
The temperature on March 30, 1940 was between 0.1 °C and 4.8 °C and averaged 3.0 °C. There was 3.0 mm of rain during 5.7 hours. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-southeast. Source: KNMI
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.
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.
February 29 » Finland initiates Winter War peace negotiations.
April 9 » World War II: Operation Weserübung: Germany invades Denmark and Norway.
May 6 » John Steinbeck is awarded the Pulitzer Prize for his novel The Grapes of Wrath.
May 28 » World War II: Belgium surrenders to Nazi Germany to end the Battle of Belgium.
September 12 » An explosion at the Hercules Powder Company plant in Kenvil, New Jersey kills 51 people and injures over 200.
September 27 » World War II: The Tripartite Pact is signed in Berlin by Germany, Japan and Italy.
Day of death April 21, 1964
The temperature on April 21, 1964 was between 8.0 °C and 16.5 °C and averaged 11.7 °C. There was 0.8 mm of rain during 0.7 hours. There was 8.0 hours of sunshine (56%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. Source: KNMI
January 13 » In Manchester, New Hampshire, fourteen-year-old Pamela Mason is murdered. Edward Coolidge is tried and convicted of the crime, but the conviction is set aside by the landmark Fourth Amendment case Coolidge v. New Hampshire (1971).
February 27 » The Government of Italy asks for help to keep the Leaning Tower of Pisa from toppling over.
April 26 » Tanganyika and Zanzibar merge to form Tanzania.
October 10 » The Tokyo Summer Olympics opening ceremony is the first to be relayed live by satellites.
November 21 » Second Vatican Council: The third session of the Roman Catholic Church's ecumenical council closes.
December 24 » Vietnam War: Viet Cong operatives bomb the Brinks Hotel in Saigon, South Vietnam to demonstrate they can strike an American installation in the heavily guarded capital.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I187511.php : accessed October 25, 2026), "Minze de Groot (1915-1964)".
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.