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.
July 11 » Salomon August Andrée leaves Spitsbergen to attempt to reach the North Pole by balloon. He later crashes and dies.
July 26 » Anglo-Afghan War: The Pashtun fakir Saidullah leads an army of more than 10,000 to begin a siege of the British garrison in the Malakand Agency of the North West Frontier Province of India.
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.
December 9 » Activist Marguerite Durand founds the feminist daily newspaper La Fronde in Paris.
Day of marriage July 12, 1919
The temperature on July 12, 1919 was between 8.2 °C and 19.3 °C and averaged 13.4 °C. There was 1.2 mm of rain. There was 2.6 hours of sunshine (16%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the 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 5 » The German Workers' Party, which would become the Nazi Party, is founded in Munich.
January 31 » The Battle of George Square takes place in Glasgow, Scotland, during a campaign for shorter working hours.
February 11 » Friedrich Ebert (SPD), is elected President of Germany.
March 21 » The Hungarian Soviet Republic is established becoming the first Communist government to be formed in Europe after the October Revolution in Russia.
April 10 » Mexican Revolution leader Emiliano Zapata is ambushed and shot dead by government forces in Morelos.
August 11 » Germany's Weimar Constitution is signed into law.
Day of death November 23, 1966
The temperature on November 23, 1966 was between 1.1 °C and 5.1 °C and averaged 3.0 °C. There was 0.3 mm of rain during 0.6 hours. There was 0.1 hours of sunshine (1%). The heavily clouded was. The average windspeed was 1 Bft (weak wind) and was prevailing from the east. Source: KNMI
March 10 » Military Prime Minister of South Vietnam Nguyễn Cao Kỳ sacked rival General Nguyễn Chánh Thi, precipitating large-scale civil and military dissension in parts of the nation.
March 19 » 1965–66 Texas Western Miners men's basketball team wins the NCAA Division I Men's Basketball Tournament.
July 8 » King Mwambutsa IV Bangiriceng of Burundi is deposed by his son Prince Charles Ndizi.
August 23 » Lunar Orbiter 1 takes the first photograph of Earth from orbit around the Moon.
August 26 » The South African Border War starts with the battle at Omugulugwombashe.
October 17 » The 23rd Street Fire in New York City kills 12 firefighters.
When copying data from this family tree, please include a reference to the origin: Tjitze Koster, "Family tree Koster Twijslerheide e.o.", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-koster/I582.php : accessed February 6, 2026), "Gerrit Koster (1897-1966)".
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