The temperature on September 20, 1910 was between 5.7 °C and 15.7 °C and averaged 10.8 °C. There was 0.8 mm of rain. There was 9.7 hours of sunshine (78%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
February 8 » The Boy Scouts of America is incorporated by William D. Boyce.
March 8 » French aviator Raymonde de Laroche becomes the first woman to receive a pilot's license.
March 28 » Henri Fabre becomes the first person to fly a seaplane, the Fabre Hydravion, after taking off from a water runway near Martigues, France.
May 11 » An act of the U.S. Congress establishes Glacier National Park in Montana.
November 20 » Mexican Revolution: Francisco I. Madero issues the Plan de San Luis Potosí, denouncing Mexican President Porfirio Díaz, calling for a revolution to overthrow the government of Mexico, effectively starting the Mexican Revolution.
November 21 » Sailors on board Brazil's warships including the Minas Gerais, São Paulo, and Bahia, violently rebel in what is now known as the Revolta da Chibata (Revolt of the Lash).
Day of marriage October 4, 1939
The temperature on October 4, 1939 was between 1.8 °C and 12.5 °C and averaged 7.5 °C. There was 9.9 hours of sunshine (86%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
In The Netherlands , there was from June 24, 1937 to July 25, 1939 the cabinet Colijn IV, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from July 25, 1939 to August 10, 1939 the cabinet Colijn V, with Dr. H. Colijn (ARP) as prime minister.
In The Netherlands , there was from August 10, 1939 to September 3, 1940 the cabinet De Geer II, with Jonkheer mr. D.J. de Geer (CHU) as prime minister.
August 2 » Albert Einstein and Leo Szilard write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.
August 27 » First flight of the turbojet-powered Heinkel He 178, the world's first jet aircraft.
September 6 » World War II: Britain suffers its first fighter pilot casualty of the Second World War at the Battle of Barking Creek as a result of friendly fire.
September 17 » World War II: The Soviet invasion of Poland begins.
December 12 » HMSDuchess sinks after a collision with HMSBarham off the coast of Scotland with the loss of 124 men.
December 27 » The 7.8 Mw Erzincan earthquake shakes eastern Turkey with a maximum Mercalli intensity of XI (Extreme). At least 32,700 people were killed.
Day of death September 11, 1978
The temperature on September 11, 1978 was between 11.7 °C and 19.6 °C and averaged 17.0 °C. There was 3.4 mm of rain during 1.3 hours. There was 2.3 hours of sunshine (18%). The heavily clouded was. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
In The Netherlands , there was from Monday, December 19, 1977 to Friday, September 11, 1981 the cabinet Van Agt I, with Mr. A.A.M. van Agt (CDA/KVP) as prime minister.
January 1 » Air India Flight 855, a Boeing 747, crashes into the Arabian Sea, due to instrument failure, spatial disorientation, and pilot error, off the coast of Bombay, India, killing all 213 people on board.
April 28 » President of Afghanistan, Mohammed Daoud Khan, is overthrown and assassinated in a coup led by pro-communist rebels.
June 1 » The first international applications under the Patent Cooperation Treaty are filed.
September 15 » Muhammad Ali outpointed Leon Spinks in a rematch to become the first boxer to win the world heavyweight title three times at the Superdome in New Orleans.
November 3 » Dominica gains its independence from the United Kingdom.
November 27 » In San Francisco, city mayor George Moscone and openly gay city supervisor Harvey Milk are assassinated by former supervisor Dan White.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I89278.php : accessed October 17, 2026), "Tjitske Grijpstra (1910-1978)".
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