April 17 » The Treaty of Shimonoseki between China and Japan is signed. This marks the end of the First Sino-Japanese War, and the defeated Qing Empire is forced to renounce its claims on Korea and to concede the southern portion of the Fengtien province, Taiwan and the Pescadores Islands to Japan.
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 28 » The United States Court of Private Land Claims rules James Reavis’s claim to Barony of Arizona is "wholly fictitious and fraudulent."
August 31 » German Count Ferdinand von Zeppelin patents his navigable balloon.
September 18 » The Atlanta Exposition Speech on race relations is delivered by Booker T. Washington.
Day of marriage August 11, 1921
The temperature on August 11, 1921 was between 12.0 °C and 20.3 °C and averaged 15.4 °C. There was 0.9 mm of rain. There was 1.9 hours of sunshine (13%). The average windspeed was 2 Bft (weak wind) and was prevailing from the 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.
January 20 » The British K-class submarine HMS K5 sinks in the English Channel; all 56 on board die.
March 31 » The Royal Australian Air Force is formed.
April 11 » Emir Abdullah establishes the first centralised government in the newly created British protectorate of Transjordan.
August 14 » Tannu Uriankhai, later Tuvan People's Republic is established as a completely independent country (which is supported by Soviet Russia).
October 8 » KDKA in Pittsburgh's Forbes Field conducts the first live broadcast of a football game.
November 11 » The Tomb of the Unknowns is dedicated by US President Warren G. Harding at Arlington National Cemetery.
Day of death September 18, 1966
The temperature on September 18, 1966 was between 5.7 °C and 16.4 °C and averaged 11.6 °C. There was 2.2 hours of sunshine (18%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 31 » The Soviet Union launches the unmanned Luna 9 spacecraft as part of the Luna program.
July 8 » King Mwambutsa IV Bangiriceng of Burundi is deposed by his son Prince Charles Ndizi.
September 6 » Prime Minister Hendrik Verwoerd, the architect of apartheid, is stabbed to death in Cape Town, South Africa during a parliamentary meeting.
September 16 » The Metropolitan Opera House opens at Lincoln Center in New York City with the world premiere of Samuel Barber's opera Antony and Cleopatra.
November 2 » The Cuban Adjustment Act comes into force, allowing 123,000 Cubans the opportunity to apply for permanent residence in the United States.
When copying data from this family tree, please include a reference to the origin: Wim Ackermans, "Family tree Ackermans", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ackermans/I2043.php : accessed February 14, 2026), "Henricus Joannes Daudt (1895-1966)".
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