The temperature on May 26, 1915 was between 9.9 °C and 25.2 °C and averaged 17.7 °C. There was 13.7 hours of sunshine (85%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east-northeast. Source: KNMI
In The Netherlands , there was from August 29, 1913 to September 9, 1918 the cabinet Cort van der Linden, with Mr. P.W.A. Cort van der Linden (liberaal) as prime minister.
January 21 » Kiwanis International is founded in Detroit.
January 25 » Alexander Graham Bell inaugurates U.S. transcontinental telephone service, speaking from New York to Thomas Watson in San Francisco.
January 26 » The Rocky Mountain National Park is established by an act of the U.S. Congress.
January 28 » An act of the U.S. Congress creates the United States Coast Guard as a branch of the United States Armed Forces.
March 20 » Albert Einstein publishes his general theory of relativity.
July 1 » Leutnant Kurt Wintgens of the then-named German Deutsches Heer's Fliegertruppe army air service achieves the first known aerial victory with a synchronized machine-gun armed fighter plane, the Fokker M.5K/MG Eindecker.
Day of marriage June 14, 1935
The temperature on June 14, 1935 was between 11.5 °C and 22.1 °C and averaged 16.4 °C. There was 8.4 mm of rain during 1.9 hours. There was 3.5 hours of sunshine (21%). The average windspeed was 2 Bft (weak wind) and was prevailing from the south. Source: KNMI
June 11 » Inventor Edwin Armstrong gives the first public demonstration of FM broadcasting in the United States at Alpine, New Jersey.
June 12 » A ceasefire is negotiated between Bolivia and Paraguay, ending the Chaco War.
July 1 » Regina, Saskatchewan police and Royal Canadian Mounted Police ambush strikers participating in the On-to-Ottawa Trek.
August 15 » Will Rogers and Wiley Post are killed after their aircraft develops engine problems during takeoff in Barrow, Alaska.
October 19 » The League of Nations places economic sanctions on Italy for its invasion of Ethiopia.
November 22 » The China Clipper inaugurates the first commercial transpacific air service, connecting Alameda, California with Manila.
Day of death September 16, 1969
The temperature on September 16, 1969 was between 15.3 °C and 19.8 °C and averaged 17.0 °C. There was 0.1 mm of rain. The almost completely overcast was. The average windspeed was 1 Bft (weak wind) and was prevailing from the south-southeast. Source: KNMI
March 2 » In Toulouse, France, the first test flight of the Anglo-French Concorde is conducted.
April 15 » The EC-121 shootdown incident: North Korea shoots down a United States Navy aircraft over the Sea of Japan, killing all 31 on board.
August 9 » Followers of Charles Manson murder pregnant actress Sharon Tate (wife of Roman Polanski), coffee heiress Abigail Folger, Polish actor Wojciech Frykowski, men's hairstylist Jay Sebring and recent high-school graduate Steven Parent.
September 5 » My Lai Massacre: U.S. Army Lieutenant William Calley is charged with six specifications of premeditated murder for the death of 109 Vietnamese civilians in My Lai.
November 14 » Apollo program: NASA launches Apollo 12, the second crewed mission to the surface of the Moon.
November 21 » U.S. President Richard Nixon and Japanese Premier Eisaku Satō agree on the return of Okinawa to Japanese control in 1972. The U.S. retains rights to bases on the island, but these are to be nuclear-free.
When copying data from this family tree, please include a reference to the origin: Jan Kaper, "Family tree Kaper", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-kaper/I43533.php : accessed February 25, 2026), "Dirkje Groot (1915-1969)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.