July 1 » Start of first Tour de France bicycle race.
July 19 » Maurice Garin wins the first Tour de France.
July 23 » The Ford Motor Company sells its first car.
August 29 » The Slava, the last of the five Borodino-class battleships, is launched.
September 27 » The Wreck of the Old 97, an American rail disaster that became the subject of a popular ballad.
November 3 » With the encouragement of the United States, Panama separates from Colombia.
Day of marriage April 13, 1927
The temperature on April 13, 1927 was between 4.9 °C and 12.9 °C and averaged 8.9 °C. There was 0.6 mm of rain. There was 4.8 hours of sunshine (35%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west. Source: KNMI
February 23 » German theoretical physicist Werner Heisenberg writes a letter to fellow physicist Wolfgang Pauli, in which he describes his uncertainty principle for the first time.
May 21 » Charles Lindbergh touches down at Le Bourget Field in Paris, completing the world's first solo nonstop flight across the Atlantic Ocean.
July 4 » First flight of the Lockheed Vega.
August 16 » The Dole Air Race begins from Oakland, California, to Honolulu, Hawaii, during which six out of the eight participating planes crash or disappear.
September 7 » The first fully electronic television system is achieved by Philo Farnsworth.
October 4 » Gutzon Borglum begins sculpting Mount Rushmore.
Day of death November 12, 1963
The temperature on November 12, 1963 was between 8.5 °C and 12.9 °C and averaged 10.7 °C. There was 2.7 mm of rain during 1.6 hours. There was 3.7 hours of sunshine (41%). The partly clouded was. The average windspeed was 5 Bft (very strong wind) and was prevailing from the southwest. Source: KNMI
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/I90018.php : accessed October 8, 2026), "Tjitske Okma (1903-1963)".
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