In The Netherlands , there was from August 21, 1891 to May 9, 1894 the cabinet Van Tienhoven, with Mr. G. van Tienhoven (unie-liberaal) as prime minister.
April 15 » The General Electric Company is formed.
June 6 » The Chicago "L" elevated rail system begins operation.
July 7 » The Katipunan is established, the discovery of which by Spanish authorities initiated the Philippine Revolution.
August 9 » Thomas Edison receives a patent for a two-way telegraph.
September 28 » The first night game for American football takes place in a contest between Wyoming Seminary and Mansfield State Normal.
October 12 » The Pledge of Allegiance is first recited by students in many US public schools.
Day of marriage August 26, 1914
The temperature on August 26, 1914 was between 13.0 °C and 22.4 °C and averaged 16.6 °C. There was 0.5 mm of rain. There was 5.9 hours of sunshine (42%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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.
June 12 » Massacre of Phocaea: Turkish irregulars slaughter 50 to 100 Greeks and expel thousands of others in an ethnic cleansing operation in the Ottoman Empire.
August 4 » In response to the German invasion of Belgium, Belgium and the British Empire declare war on Germany. The United States declares its neutrality.
August 26 » World War I: During the retreat from Mons, the British II Corps commanded by General Sir Horace Smith-Dorrien fought a vigorous and successful defensive action at Le Cateau.
August 28 » World War I: The Royal Navy defeats the German fleet in the Battle of Heligoland Bight.
December 14 » Lisandro de la Torre and others found the Democratic Progressive Party (Partido Demócrata Progresista, PDP) at the Hotel Savoy, Buenos Aires, Argentina.
December 25 » A series of unofficial truces occur across the Western Front to celebrate Christmas.
Day of death May 11, 1963
The temperature on May 11, 1963 was between 8.1 °C and 10.0 °C and averaged 8.8 °C. There was 6.4 mm of rain during 8.5 hours. The almost completely overcast was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 13 » Coup d'état in Togo results in the assassination of president Sylvanus Olympio.
February 5 » The European Court of Justice's ruling in Van Gend en Loos v Nederlandse Administratie der Belastingen establishes the principle of direct effect, one of the most important, if not the most important, decisions in the development of European Union law.
September 4 » Swissair Flight 306 crashes near Dürrenäsch, Switzerland, killing all 80 people on board.
October 9 » In Italy, a large landslide a causes a giant wave to overtop the Vajont Dam, killing over 2,000.
October 10 » The Partial Nuclear Test Ban Treaty comes into effect.
October 22 » A BAC One-Eleven prototype airliner crashes in UK with the loss of all on board.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I4201.php : accessed March 11, 2026), "Jacobus Gerardus Keijsper (1892-1963)".
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