January 31 » Czechoslav Trade Union Association is founded in Prague.
February 1 » Shinhan Bank, the oldest bank in South Korea, opens in Seoul.
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.
August 31 » Thomas Edison patents the Kinetoscope, the first movie projector.
September 11 » After months of pursuit, generals of Menelik II of Ethiopia capture Gaki Sherocho, the last king of Kaffa, bringing an end to that ancient kingdom.
Day of marriage June 21, 1920
The temperature on June 21, 1920 was between 10.2 °C and 20.4 °C and averaged 15.6 °C. There was 10.3 mm of rain. There was 7.2 hours of sunshine (43%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. 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 23 » The Netherlands refuses to surrender the exiled Kaiser Wilhelm II of Germany to the Allies.
April 28 » Azerbaijan is added to the Soviet Union.
May 16 » In Rome, Pope Benedict XV canonizes Joan of Arc.
August 11 » The Latvian–Soviet Peace Treaty, which relinquished Russia's authority and pretenses to Latvia, is signed, ending the Latvian War of Independence.
August 16 » The congress of the Communist Party of Bukhara opens. The congress would call for armed revolution.
November 28 » FIDAC (The Interallied Federation of War Veterans Organisations), the first international organization of war veterans is established in Paris, France
Day of death February 16, 1963
The temperature on February 16, 1963 was between -3.7 °C and -0.8 °C and averaged -2.4 °C. There was 0.5 mm of rain during 0.8 hours. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
June 3 » Soldiers of the South Vietnamese Army attack protesting Buddhists in Huế with liquid chemicals from tear-gas grenades, causing 67 people to be hospitalized for blistering of the skin and respiratory ailments.
June 5 » The British Secretary of State for War, John Profumo, resigns in a sex scandal known as the "Profumo affair".
June 16 » In an attempt to resolve the Buddhist crisis in South Vietnam, a Joint Communique was signed between President Ngo Dinh Diem and Buddhist leaders.
August 24 » Buddhist crisis: As a result of the Xá Lợi Pagoda raids, the US State Department cables the United States Embassy, Saigon to encourage Army of the Republic of Vietnam generals to launch a coup against President Ngô Đình Diệm if he did not remove his brother Ngô Đình Nhu.
December 10 » Zanzibar gains independence from the United Kingdom as a constitutional monarchy, under Sultan Jamshid bin Abdullah.
December 14 » The dam containing the Baldwin Hills Reservoir bursts, killing five people and damaging hundreds of homes in Los Angeles, California.
When copying data from this family tree, please include a reference to the origin: Nico de Kunder, "Family tree De Kunder", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-kunder/I6311.php : accessed October 17, 2026), "Maria Petronella Elisabeth Coolen (1897-1963)".
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