The temperature on May 16, 1914 was between 4.8 °C and 19.1 °C and averaged 13.5 °C. There was 13.7 hours of sunshine (87%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
April 9 » Mexican Revolution: One of the world's first naval/air skirmishes takes place off the coast of western Mexico.
May 30 » The new, and then the largest, Cunard ocean liner RMSAquitania, 45,647 tons, sets sails on her maiden voyage from Liverpool, England, to New York City.
August 5 » World War I: The guns of Point Nepean fort at Port Phillip Heads in Victoria (Australia) fire across the bows of the Norddeutscher Lloyd steamer SSPfalz which is attempting to leave the Port of Melbourne in ignorance of the declaration of war and she is detained; this is said to be the first Allied shot of the War.
August 15 » World War I: Beginning of the Battle of Cer, the first Allied victory of World War I.
August 17 » World War I: Battle of Stallupönen: The German army of General Hermann von François defeats the Russian force commanded by Paul von Rennenkampf near modern-day Nesterov, Russia.
December 14 » Lisandro de la Torre and others found the Democratic Progressive Party (Partido Demócrata Progresista, PDP) at the Hotel Savoy, Buenos Aires, Argentina.
Day of marriage June 9, 1941
The temperature on June 9, 1941 was between 8.5 °C and 23.3 °C and averaged 17.3 °C. There was 0.1 mm of rain. There was 12.3 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. 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.
February 25 » The outlawed Communist Party of the Netherlands organises a general strike in German-occupied Amsterdam to protest against Nazi persecution of Dutch Jews.
May 30 » World War II: Manolis Glezos and Apostolos Santas climb the Athenian Acropolis and tear down the German flag.
June 2 » World War II: German paratroopers murder Greek civilians in the villages of Kondomari and Alikianos.
September 4 » World War II: A German submarine makes the first attack of the war against a United States warship, the USSGreer.
October 22 » World War II: French resistance member Guy Môquet and 29 other hostages are executed by the Germans in retaliation for the death of a German officer.
October 30 » President Roosevelt approves $1 billion in Lend-Lease aid to the Allied nations.
Day of death July 15, 1962
The temperature on July 15, 1962 was between 13.6 °C and 19.0 °C and averaged 15.8 °C. There was 3.8 mm of rain during 6.3 hours. The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 15 » The Derveni papyrus, Europe's oldest surviving manuscript dating to 340 BC, is found in northern Greece.
February 7 » The United States bans all Cuban imports and exports.
March 16 » A Flying Tiger Line Super Constellation disappears in the western Pacific Ocean, with all 107 aboard missing and presumed dead.
July 1 » Independence of Rwanda and Burundi.
September 27 » Rachel Carson's book Silent Spring is published, inspiring an environmental movement and the creation of the U.S. Environmental Protection Agency.
October 14 » The Cuban Missile Crisis begins when an American reconnaissance aircraft takes photographs of Soviet ballistic missiles being installed in Cuba.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I47570.php : accessed February 16, 2026), "Petrus Johannes Jozef Grootzwagers (1914-1962)".
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