The temperature on May 29, 1912 was between 6.1 °C and 17.5 °C and averaged 11.7 °C. There was 9.2 hours of sunshine (56%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-northwest. Source: KNMI
February 14 » The U.S. Navy commissions its first class of diesel-powered submarines.
May 4 » Italy occupies the Greek island of Rhodes.
July 8 » Henrique Mitchell de Paiva Couceiro leads an unsuccessful royalist attack against the First Portuguese Republic in Chaves.
August 6 » The Bull Moose Party meets at the Chicago Coliseum.
October 8 » The First Balkan War begins when Montenegro declares war against the Ottoman Empire.
November 7 » The Deutsche Opernhaus (now Deutsche Oper Berlin) opens in the Berlin neighborhood of Charlottenburg, with a production of Beethoven's Fidelio.
Day of marriage May 4, 1938
The temperature on May 4, 1938 was between 3.4 °C and 15.6 °C and averaged 10.2 °C. There was 13.4 hours of sunshine (89%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
May 26 » In the United States, the House Un-American Activities Committee begins its first session.
June 23 » The Civil Aeronautics Act is signed into law, forming the Civil Aeronautics Authority in the United States.
July 31 » Bulgaria signs a non-aggression pact with Greece and other states of Balkan Antanti (Turkey, Romania, Yugoslavia).
August 18 » The Thousand Islands Bridge, connecting New York, United States with Ontario, Canada over the Saint Lawrence River, is dedicated by U.S. President Franklin D. Roosevelt.
December 13 » The Holocaust: The Neuengamme concentration camp opens in the Bergedorf district of Hamburg, Germany.
December 17 » Otto Hahn discovers the nuclear fission of the heavy element uranium, the scientific and technological basis of nuclear energy.
When copying data from this family tree, please include a reference to the origin: J. van Broekhoven, "Database Van Broekhoven", database, Genealogy Online (https://www.genealogieonline.nl/database-van-broekhoven/I314540.php : accessed February 23, 2026), "Petronella Josephina Johanna Suoss (1912-)".
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