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.
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).
November 1 » The first Library of Congress building opens its doors to the public; the library had previously been housed in the Congressional Reading Room in the U.S. Capitol.
Day of marriage June 30, 1921
The temperature on June 30, 1921 was between 10.4 °C and 16.2 °C and averaged 12.8 °C. There was 0.3 hours of sunshine (2%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. 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 12 » Acting to restore confidence in baseball after the Black Sox Scandal, Judge Kenesaw Mountain Landis is elected as Major League Baseball's first commissioner.
March 6 » Portuguese Communist Party is founded as the Portuguese Section of the Communist International.
March 21 » The New Economic Policy is implemented by the Bolshevik Party in response to the economic failure as a result of war communism.
May 3 » West Virginia becomes the first state to legislate a broad sales tax, but does not implement it until a number of years later due to enforcement issues.
July 11 » Former president of the United States William Howard Taft is sworn in as 10th chief justice of the U.S. Supreme Court, becoming the only person ever to hold both offices.
November 14 » The Communist Party of Spain is founded, and issues the first edition of Mundo obrero.
Day of death December 12, 1962
The temperature on December 12, 1962 was between -1.5 °C and 7.5 °C and averaged 3.0 °C. There was 0.8 mm of rain during 0.5 hours. There was 3.0 hours of sunshine (38%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-southwest. Source: KNMI
January 1 » Western Samoa achieves independence from New Zealand; its name is changed to the Independent State of Western Samoa.
July 11 » Project Apollo: At a press conference, NASA announces lunar orbit rendezvous as the means to land astronauts on the Moon, and return them to Earth.
August 27 » The Mariner 2 unmanned space mission is launched to Venus by NASA.
September 6 » The United States government begins the Exercise Spade Fork nuclear readiness drill.
October 14 » The Cuban Missile Crisis begins when an American reconnaissance aircraft takes photographs of Soviet ballistic missiles being installed in Cuba.
November 11 » Kuwait's National Assembly ratifies the Constitution of Kuwait.
When copying data from this family tree, please include a reference to the origin: J Eijsermans, "Eijsermans family tree", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-eijsermans/I258223.php : accessed February 22, 2026), "Adriana Maria Michielsen (1897-1962)".
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