January 31 » Czechoslav Trade Union Association is founded in Prague.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of marriage May 9, 1922
The temperature on May 9, 1922 was between 5.7 °C and 16.5 °C and averaged 11.4 °C. There was 11.3 hours of sunshine (74%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
In The Netherlands , there was from September 9, 1918 to September 18, 1922 the cabinet Ruys de Beerenbrouck I, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
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 28 » The United Kingdom ends its protectorate over Egypt through a Unilateral Declaration of Independence.
June 1 » The Royal Ulster Constabulary is founded.
June 29 » France grants 1km at Vimy Ridge "freely, and for all time, to the Government of Canada, the free use of the land exempt from all taxes".
September 13 » The final act of the Greco-Turkish War, the Great Fire of Smyrna, commences.
November 14 » The British Broadcasting Company begins radio service in the United Kingdom.
December 8 » Northern Ireland ceases to be part of the Irish Free State.
Day of death August 22, 1959
The temperature on August 22, 1959 was between 14.0 °C and 23.4 °C and averaged 18.2 °C. There was 6.1 hours of sunshine (43%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
March 18 » The Hawaii Admission Act is signed into law.
March 31 » The 14th Dalai Lama, crosses the border into India and is granted political asylum.
April 8 » The Organization of American States drafts an agreement to create the Inter-American Development Bank.
June 14 » Disneyland Monorail System, the first daily operating monorail system in the Western Hemisphere, opens to the public in Anaheim, California.
July 29 » First United States Congress elections in Hawaii as a state of the Union.
November 2 » The first section of the M1 motorway, the first inter-urban motorway in the United Kingdom, is opened between the present junctions 5 and 18, along with the M10 motorway and M45 motorway.
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/I1187.php : accessed February 13, 2026), "Joannes Ploeger (1897-1959)".
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