April 18 » The Greco-Turkish War is declared between Greece and the Ottoman Empire.
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 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.
September 12 » Tirah Campaign: In the Battle of Saragarhi, ten thousand Pashtun tribesmen suffer several hundred casualties while attacking 21 Sikh soldiers in British service.
December 30 » The British Colony of Natal annexes Zululand.
Day of marriage January 30, 1920
The temperature on January 30, 1920 was between 2.8 °C and 8.6 °C and averaged 5.3 °C. There was 5.6 mm of rain. There was 0.6 hours of sunshine (7%). The average windspeed was 5 Bft (very strong wind) 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 26 » Former Ford Motor Company executive Henry Leland launches the Lincoln Motor Company which he later sold to his former employer.
January 28 » Foundation of the Spanish Legion.
March 8 » The Arab Kingdom of Syria, the first modern Arab state to come into existence, is established.
May 3 » A Bolshevik coup fails in the Democratic Republic of Georgia.
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
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The Family tree Weerman publication was prepared by Hendrik Willem Jonker (contact is not possible).
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