The temperature on April 9, 1915 was between 4.0 °C and 7.6 °C and averaged 5.9 °C. There was 3.0 mm of rain. There was 1.2 hours of sunshine (9%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. 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.
February 22 » World War I: The Imperial German Navy institutes unrestricted submarine warfare.
March 26 » The Vancouver Millionaires win the 1915 Stanley Cup Finals, the first championship played between the Pacific Coast Hockey Association and the National Hockey Association.
April 18 » French pilot Roland Garros is shot down and glides to a landing on the German side of the lines during World War I.
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.
July 7 » The First Battle of the Isonzo comes to an end.
December 20 » World War I: The last Australian troops are evacuated from Gallipoli.
Day of death December 26, 1982
The temperature on December 26, 1982 was between 6.2 °C and 8.5 °C and averaged 7.7 °C. There was 0.1 mm of rain during 0.8 hours. The almost completely overcast was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
In The Netherlands , there was from Friday, September 11, 1981 to Saturday, May 29, 1982 the cabinet Van Agt II, with Mr. A.A.M. van Agt (CDA) as prime minister.
In The Netherlands , there was from Saturday, May 29, 1982 to Thursday, November 4, 1982 the cabinet Van Agt III, with Mr. A.A.M. van Agt (CDA) as prime minister.
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
March 19 » Falklands War: Argentinian forces land on South Georgia Island, precipitating war with the United Kingdom.
March 23 » Guatemala's government, headed by Fernando Romeo Lucas García is overthrown in a military coup by right-wing General Efraín Ríos Montt.
March 29 » The Canada Act 1982 receives the Royal Assent from Queen Elizabeth II, setting the stage for the Queen of Canada to proclaim the Constitution Act, 1982.
July 18 » Two hundred sixty-eight Guatemalan campesinos ("peasants" or "country people") are slain in the Plan de Sánchez massacre.
August 29 » The synthetic chemical element Meitnerium, atomic number 109, is first synthesized at the Gesellschaft für Schwerionenforschung in Darmstadt, Germany.
November 13 » Ray Mancini defeats Duk Koo Kim in a boxing match held in Las Vegas. Kim's subsequent death (on November 17) leads to significant changes in the sport.
When copying data from this family tree, please include a reference to the origin: J. Post, "Descendants Grootenboer", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-grootenboer/I2191.php : accessed February 26, 2026), "Heiltje Grootenboer (1915-1982)".
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