June 10 » Spanish–American War: In the Battle of Guantánamo Bay, U.S. Marines begin the American invasion of Spanish-held Cuba.
July 7 » US President William McKinley signs the Newlands Resolution annexing Hawaii as a territory of the United States.
August 12 » The Hawaiian flag is lowered from ʻIolani Palace in an elaborate annexation ceremony and replaced with the flag of the United States to signify the transfer of sovereignty from the Republic of Hawaii to the United States.
August 13 » Carl Gustav Witt discovers 433 Eros, the first near-Earth asteroid to be found.
October 1 » The Vienna University of Economics and Business Administration is founded under the name k.u.k. Exportakademie.
November 5 » Negrese nationalists revolt against Spanish rule and establish the short-lived Republic of Negros.
Day of marriage February 12, 1920
The temperature on February 12, 1920 was between 1.4 °C and 8.5 °C and averaged 4.6 °C. There was 6.4 hours of sunshine (66%). The average windspeed was 4 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.
February 10 » About 75% of the population in Zone I votes to join Denmark in the 1920 Schleswig plebiscites.
February 10 » Józef Haller de Hallenburg performs symbolic wedding of Poland to the sea, celebrating restitution of Polish access to open sea.
February 13 » The Negro National League is formed.
May 2 » The first game of the Negro National League baseball is played in Indianapolis.
December 11 » Irish War of Independence: In retaliation for a recent IRA ambush, British forces burn and loot numerous buildings in Cork city. Many civilians report being beaten, shot at, robbed and verbally abused by British forces.
December 16 » The Haiyuan earthquake of 8.5Mw , rocks the Gansu province in China, killing an estimated 200,000.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I131022.php : accessed October 25, 2026), "Aafke Oldenburger (1898-????)".
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