January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
February 14 » The United States Department of Commerce and Labor is established (later split into the Department of Commerce and the Department of Labor).
March 14 » Pelican Island National Wildlife Refuge, the first national wildlife refuge in the US, is established by President Theodore Roosevelt.
May 29 » In the May Coup, Alexander I, King of Serbia, and Queen Draga, are assassinated in Belgrade by the Black Hand (Crna Ruka) organization.
July 4 » The Philippine–American War is officially concluded.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
Day of marriage October 5, 1923
The temperature on October 5, 1923 was between 5.7 °C and 12.2 °C and averaged 9.6 °C. There was 1.5 mm of rain. There was 0.2 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 15 » Greece becomes the last European country to adopt the Gregorian calendar.
June 27 » Capt. Lowell H. Smith and Lt. John P. Richter perform the first ever aerial refueling in a DH.4B biplane.
September 8 » Honda Point disaster: Nine US Navy destroyers run aground off the California coast. Seven are lost, and twenty-three sailors killed.
September 12 » Southern Rhodesia, today called Zimbabwe, is annexed by the United Kingdom.
October 15 » The German Rentenmark is introduced in Germany to counter hyperinflation in the Weimar Republic.
October 22 » The royalist Leonardopoulos–Gargalidis coup d'état attempt fails in Greece, discrediting the monarchy and paving the way for the establishment of the Second Hellenic Republic.
Day of death May 6, 1941
The temperature on May 6, 1941 was between 1.1 °C and 11.1 °C and averaged 6.2 °C. There was 2.3 hours of sunshine (15%). The average windspeed was 2 Bft (weak wind) and was prevailing from the northwest. 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.
When copying data from this family tree, please include a reference to the origin: Tijs van den Brink, "Parentele of Geurt Jacobs", database, Genealogy Online (https://www.genealogieonline.nl/geurt-jacobs/I36860.php : accessed February 6, 2026), "Petertje Coenraadts (1903-1941)".
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