The temperature on May 15, 1918 was between 4.5 °C and 20.7 °C and averaged 13.1 °C. There was 0.1 mm of rain. There was 5.8 hours of sunshine (37%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. 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.
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 26 » Finnish Civil War: A group of Red Guards hangs a red lantern atop the tower of Helsinki Workers' Hall to symbolically mark the start of the war.
March 27 » The National Council of Bessarabia proclaims union with the Kingdom of Romania.
September 29 » Germany's Supreme Army Command tells the Kaiser and the Chancellor to open negotiations for an armistice.
November 3 » The German Revolution of 1918–19 begins when 40,000 sailors take over the port in Kiel.
November 9 » Kaiser Wilhelm II of Germany abdicates after the German Revolution, and Germany is proclaimed a Republic.
November 21 » The Flag of Estonia, previously used by pro-independence activists, is formally adopted as the national flag of the Republic of Estonia.
Day of marriage July 26, 1941
The temperature on July 26, 1941 was between 17.6 °C and 28.3 °C and averaged 21.9 °C. There was 8.9 hours of sunshine (56%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
April 14 » World War II: German general Erwin Rommel attacks Tobruk.
May 5 » Emperor Haile Selassie returns to Addis Ababa; the country commemorates the date as Liberation Day or Patriots' Victory Day.
July 4 » Nazi crimes against the Polish nation: Nazi troops massacre Polish scientists and writers in the captured Ukrainian city of Lviv.
September 5 » Whole territory of Estonia is occupied by Nazi Germany.
October 30 » Holocaust: Fifteen hundred Jews from Pidhaytsi are sent by Nazis to Bełżec extermination camp.
December 24 » World War II: Kuching is conquered by Japanese forces.
Day of death September 12, 1992
The temperature on September 12, 1992 was between 8.5 °C and 17.8 °C and averaged 12.6 °C. There was 5.3 hours of sunshine (41%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from Tuesday, November 7, 1989 to Monday, August 22, 1994 the cabinet Lubbers III, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 4 » A coup d'état is led by Hugo Chávez against Venezuelan President Carlos Andrés Pérez.
March 12 » Mauritius becomes a republic while remaining a member of the Commonwealth of Nations.
March 22 » USAir Flight 405 crashes shortly after takeoff from New York City's LaGuardia Airport, leading to a number of studies into the effect that ice has on aircraft.
March 31 » The USSMissouri, the last active United States Navy battleship, is decommissioned in Long Beach, California.
April 29 » Riots in Los Angeles, following the acquittal of police officers charged with excessive force in the beating of Rodney King. Over the next three days 63 people are killed and hundreds of buildings are destroyed.
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/I176498.php : accessed October 25, 2026), "Ytje de Groot (1918-1992)".
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