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.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 2 » Anglo-Afghan War: The Siege of Malakand ends when a relief column is able to reach the British garrison in the Malakand states.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 10 » Lattimer massacre: A sheriff's posse kills 19 unarmed striking immigrant miners in Lattimer, Pennsylvania, United States.
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 20 » The British K-class submarine HMS K5 sinks in the English Channel; all 56 on board die.
March 18 » The Kronstadt rebellion is suppressed by the Red Army.
March 19 » Irish War of Independence: One of the biggest engagements of the war takes place at Crossbarry, County Cork. About 100 Irish Republican Army (IRA) volunteers escape an attempt by over 1,300 British forces to encircle them.
May 3 » The Government of Ireland Act 1920 is passed, dividing Ireland into Northern Ireland and Southern Ireland.
July 23 » The Communist Party of China (CPC) is established at the founding National Congress.
October 18 » The Crimean Autonomous Soviet Socialist Republic is formed as part of the Russian Soviet Federative Socialist Republic.
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
January 12 » Dr. James Bedford becomes the first person to be cryonically preserved with intent of future resuscitation.
July 3 » The Aden Emergency: The Battle of the Crater in which the British Argyll and Sutherland Highlanders retake the Crater district following the Arab Police mutiny.
August 8 » The Association of Southeast Asian Nations (ASEAN) is founded by Indonesia, Malaysia, the Philippines, Singapore and Thailand.
September 3 » Dagen H in Sweden: Traffic changes from driving on the left to driving on the right overnight.
October 21 » The National Mobilization Committee to End the War in Vietnam organizes a march of fifty thousand people from the Lincoln Memorial to the Pentagon.
November 19 » The establishment of TVB, the first wireless commercial television station in Hong Kong.
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 3, 2026), "Christina Johanna Dreyer b5c1d3e9f7g8 (1897-1967)".
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