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.
May 26 » Dracula, a Gothic horror novel by Irish author Bram Stoker, is published.
June 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
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 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
Day of marriage October 4, 1921
The temperature on October 4, 1921 was between 12.0 °C and 15.7 °C and averaged 13.5 °C. There was 7.3 mm of rain. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. 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.
March 6 » Portuguese Communist Party is founded as the Portuguese Section of the Communist International.
May 8 » The creation of the Communist Party of Romania.
June 20 » Workers of Buckingham and Carnatic Mills in the city of Chennai, India, begin a four-month strike.
June 28 » Serbian King Alexander I proclaims the new constitution of the Kingdom of Serbs, Croats and Slovenes, known thereafter as the Vidovdan Constitution.
July 29 » Adolf Hitler becomes leader of the National Socialist German Workers Party.
October 29 » United States: Second trial of Sacco and Vanzetti in Boston, Massachusetts.
Day of death December 22, 1954
The temperature on December 22, 1954 was between 4.3 °C and 9.3 °C and averaged 6.7 °C. There was 6.8 mm of rain during 6.1 hours. There was 0.7 hours of sunshine (9%). The partly or heavily clouded was. The average windspeed was 6 Bft (strong wind) and was prevailing from the west-northwest. Source: KNMI
When copying data from this family tree, please include a reference to the origin: Dirk Ham, "Family tree Ham en Dallinga", database, Genealogy Online (https://www.genealogieonline.nl/ham-stamboom/I2992.php : accessed March 7, 2026), "Jannes Toxopeus (1897-1954)".
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