January 13 » Émile Zola's J'accuse…! exposes the Dreyfus affair.
February 15 » The battleship USSMaine explodes and sinks in Havana harbor in Cuba, killing 274. This event leads the United States to declare war on Spain.
April 21 » Spanish–American War: The United States Navy begins a blockade of Cuban ports. When the U.S. Congress issued a declaration of war on April 25, it declared that a state of war had existed from this date.
June 13 » Yukon Territory is formed, with Dawson chosen as its capital.
July 1 » Spanish–American War: The Battle of San Juan Hill is fought in Santiago de Cuba, Cuba.
August 11 » Spanish–American War: American troops enter the city of Mayagüez, Puerto Rico.
Day of marriage May 8, 1923
The temperature on May 8, 1923 was between 9.1 °C and 15.5 °C and averaged 12.4 °C. There was 3.0 mm of rain. There was 2.3 hours of sunshine (15%). The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
In The Netherlands , there was from September 19, 1922 to August 4, 1925 the cabinet Ruys de Beerenbrouck II, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
February 15 » Greece becomes the last European country to adopt the Gregorian calendar.
March 20 » The Arts Club of Chicago hosts the opening of Pablo Picasso's first United States showing, entitled Original Drawings by Pablo Picasso, becoming an early proponent of modern art in the United States.
June 27 » Capt. Lowell H. Smith and Lt. John P. Richter perform the first ever aerial refueling in a DH.4B biplane.
August 23 » Captain Lowell Smith and Lieutenant John P. Richter performed the first mid-air refueling on De Havilland DH-4B, setting an endurance flight record of 37 hours.
September 13 » Following a military coup in Spain, Miguel Primo de Rivera takes over, setting up a dictatorship.
December 21 » United Kingdom and Nepal formally signed an agreement of friendship, called the Nepal–Britain Treaty of 1923, which superseded the Treaty of Sugauli signed in 1816.
Day of death June 20, 1961
The temperature on June 20, 1961 was between 5.2 °C and 20.0 °C and averaged 13.6 °C. There was 9.5 hours of sunshine (57%). The partly clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the west-northwest. Source: KNMI
January 20 » John F. Kennedy is inaugurated the 35th President of the United States of America, becoming the second youngest man to take the office, and the first Catholic.
February 4 » The Angolan War of Independence and the greater Portuguese Colonial War begin.
February 14 » Discovery of the chemical elements: Element 103, Lawrencium, is first synthesized at the University of California.
June 23 » The Antarctic Treaty System, which sets aside Antarctica as a scientific preserve and limits military activity on the continent, its islands and ice shelves, comes into force.
August 11 » The former Portuguese territories in India of Dadra and Nagar Haveli are merged to create the Union Territory Dadra and Nagar Haveli.
October 27 » NASA tests the first Saturn I rocket in Mission Saturn-Apollo 1.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I518918.php : accessed February 14, 2026), "Anna Maria Dreyer (1898-1961)".
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