The temperature on March 23, 1911 was between 3.0 °C and 9.9 °C and averaged 5.6 °C. There was 5.5 hours of sunshine (45%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
January 15 » Palestinian Arabic-language Falastin newspaper founded.
January 21 » The first Monte Carlo Rally takes place.
March 25 » In New York City, the Triangle Shirtwaist Factory fire kills 146 garment workers.
March 29 » The M1911 .45 ACP pistol becomes the official U.S. Army side arm.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
July 7 » The United States, UK, Japan, and Russia sign the North Pacific Fur Seal Convention of 1911 banning open-water seal hunting, the first international treaty to address wildlife preservation issues.
Day of marriage September 20, 1941
The temperature on September 20, 1941 was between 7.5 °C and 19.3 °C and averaged 13.5 °C. There was 10.5 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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.
March 4 » World War II: The United Kingdom launches Operation Claymore on the Lofoten Islands; the first large scale British Commando raid.
May 15 » First flight of the Gloster E.28/39 the first British and Allied jet aircraft.
May 27 » World War II: The German battleshipBismarck is sunk in the North Atlantic killing almost 2,100 men.
July 6 » The German army launches its offensive to encircle several Soviet armies near Smolensk.
August 14 » World War II: Winston Churchill and Franklin D. Roosevelt sign the Atlantic Charter of war stating postwar aims.
October 29 » The Holocaust: In the Kaunas Ghetto, over 10,000 Jews are shot by German occupiers at the Ninth Fort, a massacre known as the "Great Action".
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/I69078.php : accessed February 22, 2026), "Petrus Johannes Josephus Klerks (1911-)".
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