The temperature on April 6, 1911 was between -4.7 °C and 4.9 °C and averaged -0.1 °C. There was 9.3 hours of sunshine (70%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
May 31 » The RMS Titanic is launched in Belfast, Northern Ireland.
June 16 » IBM founded as the Computing-Tabulating-Recording Company in Endicott, New York.
August 1 » Harriet Quimby takes her pilot's test and becomes the first U.S. woman to earn an Aero Club of America aviator's certificate.
September 7 » French poet Guillaume Apollinaire is arrested and put in jail on suspicion of stealing the Mona Lisa from the Louvre museum.
September 20 » The White Star Line's RMSOlympic collides with the British warship HMSHawke.
Day of marriage July 20, 1939
The temperature on July 20, 1939 was between 13.6 °C and 21.6 °C and averaged 17.2 °C. There was 7.1 mm of rain during 1.6 hours. There was 5.1 hours of sunshine (32%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south. 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.
March 16 » From Prague Castle, Hitler proclaims Bohemia and Moravia a German protectorate.
August 31 » Nazi Germany mounts a false flag attack on the Gleiwitz radio station, creating an excuse to attack Poland the following day, thus starting World War II in Europe.
September 3 » World War II: The United Kingdom and France begin a naval blockade of Germany that lasts until the end of the war. This also marks the beginning of the Battle of the Atlantic.
September 10 » World War II: The submarine HMSOxley is mistakenly sunk by the submarine HMSTriton near Norway and becomes the Royal Navy's first loss of a submarine in the war.
October 8 » World War II: Germany annexes western Poland.
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 July 24, 1953
The temperature on July 24, 1953 was between 12.0 °C and 22.4 °C and averaged 17.1 °C. There was 13.5 hours of sunshine (85%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
January 3 » Frances P. Bolton and her son, Oliver from Ohio, become the first mother and son to serve simultaneously in the U.S. Congress.
February 28 » James Watson and Francis Crick announce to friends that they have determined the chemical structure of DNA; the formal announcement takes place on April 25 following publication in April's Nature (pub. April 2).
April 27 » Operation Moolah offers $50,000 to any pilot who defected with a fully mission-capable Mikoyan-Gurevich MiG-15 to South Korea. The first pilot was to receive $100,000.
June 30 » The first Chevrolet Corvette rolls off the assembly line in Flint, Michigan.
July 7 » Ernesto "Che" Guevara sets out on a trip through Bolivia, Peru, Ecuador, Panama, Costa Rica, Nicaragua, Honduras, and El Salvador.
December 6 » Vladimir Nabokov completes his controversial novel Lolita.
When copying data from this family tree, please include a reference to the origin: Alle Elbers, "Sluzigers (e.a.)", database, Genealogy Online (https://www.genealogieonline.nl/sluzigers/I138446.php : accessed December 26, 2025), "Fredrik de Vries (1911-1953)".
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