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 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
August 10 » German chemist Felix Hoffmann discovers an improved way of synthesizing acetylsalicylic acid (aspirin).
August 21 » Oldsmobile, an American automobile manufacturer and marque, is founded.
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 December 11, 1919
The temperature on December 11, 1919 was between -4.9 °C and -0.3 °C and averaged -2.5 °C. There was 5.5 hours of sunshine (70%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. 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.
April 16 » Polish–Soviet War: The Polish army launches the Vilna offensive to capture Vilnius in modern Lithuania.
May 19 » Mustafa Kemal Atatürk lands at Samsun on the Anatolian Black Sea coast, initiating what is later termed the Turkish War of Independence.
June 2 » Anarchists simultaneously set off bombs in eight separate U.S. cities.
June 21 » Admiral Ludwig von Reuter scuttles the German fleet at Scapa Flow, Orkney. The nine sailors killed are the last casualties of World War I.
July 27 » The Chicago Race Riot erupts after a racial incident occurred on a South Side beach, leading to 38 fatalities and 537 injuries over a five-day period.
September 4 » Mustafa Kemal Atatürk, who founded the Republic of Turkey, gathers a congress in Sivas to make decisions as to the future of Anatolia and Thrace.
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The Family tree Van Dijk publication was prepared by wijlen Jan van Dijk (contact is not possible).
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