January 12 » The National Trust is founded in the United Kingdom.
February 24 » Revolution breaks out in Baire, a town near Santiago de Cuba, beginning the Cuban War of Independence, that ends with the Spanish–American War in 1898.
April 8 » In Pollock v. Farmers' Loan & Trust Co. the Supreme Court of the United States declares unapportioned income tax to be unconstitutional.
May 25 » The Republic of Formosa is formed, with Tang Jingsong as its president.
June 11 » Paris–Bordeaux–Paris, sometimes called the first automobile race in history or the "first motor race", takes place.
June 20 » The Kiel Canal, crossing the base of the Jutland peninsula and the busiest artificial waterway in the world, is officially opened.
Day of marriage November 20, 1919
The temperature on November 20, 1919 was between 2.2 °C and 8.1 °C and averaged 5.4 °C. There was 2.8 mm of rain. There was 0.8 hours of sunshine (9%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west-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.
February 17 » The Ukrainian People's Republic asks Entente and the US for help fighting the Bolsheviks.
March 2 » The first Communist International meets in Moscow.
May 8 » Edward George Honey proposes the idea of a moment of silence to commemorate the Armistice of 11 November 1918 which ended World War I.
October 2 » U.S. President Woodrow Wilson suffers a massive stroke, leaving him incapacitated for several weeks.
October 17 » RCA is incorporated as the Radio Corporation of America.
Day of death September 10, 1969
The temperature on September 10, 1969 was between 12.5 °C and 20.4 °C and averaged 15.2 °C. There was 0.1 mm of rain. There was 0.4 hours of sunshine (3%). The partly or heavily clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
June 22 » The Cuyahoga River catches fire in Cleveland, Ohio, drawing national attention to water pollution, and spurring the passing of the Clean Water Act and the creation of the Environmental Protection Agency.
July 24 » Apollo program: Apollo 11 splashes down safely in the Pacific Ocean.
July 25 » Vietnam War: U.S. President Richard Nixon declares the Nixon Doctrine, stating that the United States now expects its Asian allies to take care of their own military defense. This is the start of the "Vietnamization" of the war.
August 13 » The Apollo 11 astronauts enjoy a ticker tape parade in New York City. That evening, at a state dinner in Los Angeles, they are awarded the Presidential Medal of Freedom by U.S. President Richard Nixon.
October 17 » The Caravaggio painting Nativity with St. Francis and St. Lawrence is stolen from the Oratory of Saint Lawrence in Palermo.
November 21 » The first permanent ARPANET link is established between UCLA and SRI.
Day of burial September 13, 1969
The temperature on September 13, 1969 was between 13.5 °C and 26.4 °C and averaged 18.7 °C. There was 9.8 hours of sunshine (76%). The almost cloudless was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
August 4 » Vietnam War: At the apartment of French intermediary Jean Sainteny in Paris, American representative Henry Kissinger and North Vietnamese representative Xuân Thuỷ begin secret peace negotiations. The negotiations will eventually fail.
August 13 » The Apollo 11 astronauts enjoy a ticker tape parade in New York City. That evening, at a state dinner in Los Angeles, they are awarded the Presidential Medal of Freedom by U.S. President Richard Nixon.
August 21 » Gap Inc. opened their first store in San Francisco, California.
November 14 » Apollo program: NASA launches Apollo 12, the second crewed mission to the surface of the Moon.
When copying data from this family tree, please include a reference to the origin: J.J. Top, "Family tree Familie Top", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-top/I455.php : accessed February 22, 2026), "Hendrika Cornelia de Groot (1895-1969)".
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