January 31 » Czechoslav Trade Union Association is founded in Prague.
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 16 » A treaty annexing the Republic of Hawaii to the United States is signed; the Republic would not be dissolved until a year later.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage January 4, 1921
The temperature on January 4, 1921 was between 6.0 °C and 9.2 °C and averaged 8.0 °C. There was 2.0 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southwest. 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.
January 9 » Greco-Turkish War: The First Battle of İnönü, the first battle of the war, begins near Eskişehir in Anatolia.
January 20 » The first Constitution of Turkey is adopted, making fundamental changes in the source and exercise of sovereignty by consecrating the principle of national sovereignty.
February 22 » After Russian forces under Baron Roman von Ungern-Sternberg drive the Chinese out, the Bogd Khan is reinstalled as the emperor of Mongolia.
August 28 » The Red Army dissolved the Free Territory, after driving the Black Army out of Ukraine.
October 19 » The Portuguese Prime Minister and several officials are murdered in the Bloody Night coup.
November 11 » The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.
Day of death January 20, 1967
The temperature on January 20, 1967 was between 2.5 °C and 7.4 °C and averaged 5.2 °C. There was 0.2 hours of sunshine (2%). The heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south east. Source: KNMI
February 4 » Lunar Orbiter program: Lunar Orbiter 3 lifts off from Cape Canaveral's Launch Complex 13 on its mission to identify possible landing sites for the Surveyor and Apollo spacecraft.
May 1 » Elvis Presley and Priscilla Beaulieu are married in Las Vegas.
June 26 » Karol Wojtyła (later John Paul II) made a cardinal by Pope Paul VI.
September 10 » The people of Gibraltar vote to remain a British dependency rather than becoming part of Spain.
September 15 » U.S. President Lyndon B. Johnson, responding to a sniper attack at the University of Texas at Austin, writes a letter to Congress urging the enactment of gun control legislation.
November 21 » Vietnam War: American General William Westmoreland tells news reporters: "I am absolutely certain that whereas in 1965 the enemy was winning, today he is certainly losing."
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I5668.php : accessed February 4, 2026), "Christina Johanna Dreyer b5c1d3e9f7g8 (1897-1967)".
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