February 28 » Queen Ranavalona III, the last monarch of Madagascar, is deposed by a French military force.
April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
April 30 » J. J. Thomson of the Cavendish Laboratory announces his discovery of the electron as a subatomic particle, over 1,800 times smaller than a proton (in the atomic nucleus), at a lecture at the Royal Institution in London.
June 22 » British colonial officers Charles Walter Rand and Lt. Charles Egerton Ayerst are assassinated in Pune, Maharashtra, India by the Chapekar brothers and Mahadeo Vinayak Ranade, who are later caught and hanged.
July 2 » British-Italian engineer Guglielmo Marconi obtains a patent for radio in London.
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 August 22, 1928
The temperature on August 22, 1928 was between 11.6 °C and 17.5 °C and averaged 14.9 °C. There was 36.4 mm of rain. There was 0.8 hours of sunshine (6%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-southwest. Source: KNMI
March 21 » Charles Lindbergh is presented with the Medal of Honor for the first solo trans-Atlantic flight.
September 1 » Ahmet Zogu declares Albania to be a monarchy and proclaims himself king.
October 10 » Chiang Kai-shek becomes Chairman of the Republic of China.
October 12 » An iron lung respirator is used for the first time at Children's Hospital, Boston.
October 28 » The "Indonesia Raya", now the national anthem, is first played during the Second Indonesian Youth Congress.
December 6 » The government of Colombia sends military forces to suppress a month-long strike by United Fruit Company workers, resulting in an unknown number of deaths.
Day of death May 12, 1955
The temperature on May 12, 1955 was between 3.3 °C and 14.2 °C and averaged 9.2 °C. There was 5.6 hours of sunshine (36%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 2 » Following the assassination of the Panamanian president José Antonio Remón Cantera, his deputy, José Ramón Guizado, takes power, but is quickly deposed after his involvement in Cantera's death is discovered.
March 2 » Norodom Sihanouk, king of Cambodia, abdicates the throne in favor of his father, Norodom Suramarit.
May 2 » Tennessee Williams wins the Pulitzer Prize for Drama for Cat on a Hot Tin Roof.
June 14 » Chile becomes a signatory to the Buenos Aires copyright treaty.
October 26 » Ngô Đình Diệm declares himself Premier of South Vietnam.
December 31 » General Motors becomes the first U.S. corporation to make over US$1 billion in a year.
When copying data from this family tree, please include a reference to the origin: Peeters Mathieu, "FutureHistory", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-riske/I5748.php : accessed December 24, 2025), "Jozef François Maria Groenwals (1897-1955)".
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