March 1 » Henri Becquerel discovers radioactive decay.
April 15 » Closing ceremony of the Games of the I Olympiad in Athens, Greece.
May 26 » Charles Dow publishes the first edition of the Dow Jones Industrial Average.
June 2 » Guglielmo Marconi applies for a patent for his wireless telegraph.
June 15 » The deadliest tsunami in Japan's history kills more than 22,000 people.
August 30 » Philippine Revolution: After Spanish victory in the Battle of San Juan del Monte, eight provinces in the Philippines are declared under martial law by the Spanish Governor-General Ramón Blanco y Erenas.
Day of death December 11, 1949
The temperature on December 11, 1949 was between -0.5 °C and 6.3 °C and averaged 3.0 °C. There was 4.0 hours of sunshine (51%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the north-northwest. Source: KNMI
From August 7, 1948 till March 15, 1951 the Netherlands had a cabinet Drees - Van Schaik with the prime ministers Dr. W. Drees (PvdA) and Mr. J.R.H. van Schaik (KVP).
January 2 » Luis Muñoz Marín is inaugurated as the first democratically elected Governor of Puerto Rico.
February 15 » Gerald Lankester Harding and Roland de Vaux begin excavations at Cave 1 of the Qumran Caves, where they will eventually discover the first seven Dead Sea Scrolls.
May 23 » Cold War: The Western occupying powers approve the Basic Law and establish a new German state, the Federal Republic of Germany.
June 14 » Albert II, a rhesus monkey, rides a V-2 rocket to an altitude of 134km (83mi), thereby becoming the first monkey in space.
August 3 » The Basketball Association of America and the National Basketball League finalize the merger that would create the National Basketball Association.
September 27 » Zeng Liansong's design is chosen as the flag of the People's Republic of China.
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/I182797.php : accessed October 5, 2026), "Trijntje Bos (1896-1949)".
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