The temperature on January 21, 1912 was between -0.6 °C and 5.1 °C and averaged 2.8 °C. There was 1.0 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-southwest. Source: KNMI
January 23 » The International Opium Convention is signed at The Hague.
April 14 » The British passenger liner RMSTitanic hits an iceberg in the North Atlantic at 23:40 (sinks morning of April 15th).
April 20 » Opening day for baseball's Tiger Stadium in Detroit, and Fenway Park in Boston.
September 25 » Columbia University Graduate School of Journalism is founded in New York City.
October 24 » First Balkan War: The Battle of Kirk Kilisse concludes with a Bulgarian victory against the Ottoman Empire.
October 26 » First Balkan War: The Ottomans lose the cities of Thessaloniki and Skopje.
Day of marriage March 31, 1937
The temperature on March 31, 1937 was between -1.3 °C and 10.0 °C and averaged 4.9 °C. There was 5.9 hours of sunshine (46%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the east. Source: KNMI
May 27 » In California, the Golden Gate Bridge opens to pedestrian traffic, creating a vital link between San Francisco and Marin County, California.
May 28 » Volkswagen, the German automobile manufacturer is founded.
July 7 » The Marco Polo Bridge Incident provides the Imperial Japanese Army with a pretext for starting the Second Sino-Japanese War.
July 9 » The silent film archives of Fox Film Corporation are destroyed by the 1937 Fox vault fire.
September 21 » J. R. R. Tolkien's The Hobbit is published.
December 9 » Second Sino-Japanese War: Battle of Nanking: Japanese troops under the command of Lt. Gen. Asaka Yasuhiko launch an assault on the Chinese city of Nanjing (Nanking).
When copying data from this family tree, please include a reference to the origin: J. Ham, "Family tree Ham", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-ham/I69305.php : accessed February 5, 2026), "Berend Kupers (1912-)".
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