The temperature on March 31, 1914 was between 7.6 °C and 16.8 °C and averaged 12.2 °C. There was 10.2 hours of sunshine (79%). 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.
July 4 » The funeral of Archduke Franz Ferdinand and his wife Sophie takes place in Vienna, six days after their assassinations in Sarajevo.
July 28 » In the culmination of the July Crisis, Austria-Hungary declares war on Serbia, igniting World War I.
August 24 » World War I: German troops capture Namur.
September 14 » HMASAE1, the Royal Australian Navy's first submarine, was lost at sea with all hands near East New Britain, Papua New Guinea.
November 28 » World War I: Following a war-induced closure in July, the New York Stock Exchange re-opens for bond trading.
December 24 » World War I: The "Christmas truce" begins.
Day of marriage July 19, 1945
The temperature on July 19, 1945 was between 13.9 °C and 23.7 °C and averaged 19.2 °C. There was 0.4 mm of rain during 0.3 hours. There was 6.5 hours of sunshine (40%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
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.
In The Netherlands , there was from February 23, 1945 to June 24, 1945 the cabinet Gerbrandy III, with Prof. dr. P.S. Gerbrandy (ARP) as prime minister.
From June 24, 1945 till July 3, 1946 the Netherlands had a cabinet Schermerhorn - Drees with the prime ministers Prof. ir. W. Schermerhorn (VDB) and W. Drees (PvdA).
January 25 » World War II: The Battle of the Bulge ends.
March 21 » World War II: British troops liberate Mandalay, Burma.
April 12 » World War II: The U.S. Ninth Army under General William H. Simpson crosses the Elbe River astride Magdeburg, and reached Tangermünde—only 50 miles from Berlin.
May 5 » World War II: The Prague uprising begins as an attempt by the Czech resistance to free the city from German occupation.
June 7 » King Haakon VII of Norway returns from exactly five years in exile during World War II.
August 14 » The Viet Minh launches August Revolution amid the political confusion and power vacuum engulfing Vietnam.
Day of death March 21, 1999
The temperature on March 21, 1999 was between 5.5 °C and 7.6 °C and averaged 6.3 °C. There was 4.9 mm of rain during 5.5 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
February 11 » Pluto crosses Neptune's orbit, ending a nearly 20-year period when it was closer to the Sun than the gas giant; Pluto is not expected to interact with Neptune's orbit again until 2231.
April 1 » Nunavut is established as a Canadian territory carved out of the eastern part of the Northwest Territories.
May 1 » The body of British climber George Mallory is found on Mount Everest, 75 years after his disappearance in 1924.
October 12 » Pervez Musharraf takes power in Pakistan from Nawaz Sharif through a bloodless coup.
December 5 » Helen Clark is sworn in as Prime Minister of New Zealand, the second woman to hold the post and the first to be elected to the role.
December 20 » Macau is handed over to China by Portugal.
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/I65576.php : accessed February 9, 2026), "Tjeerd de Groot (1914-1999)".
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