July 1 » Start of first Tour de France bicycle race.
July 4 » The Philippine–American War is officially concluded.
November 17 » The Russian Social Democratic Labour Party splits into two groups: The Bolsheviks (Russian for "majority") and Mensheviks (Russian for "minority").
December 16 » Taj Mahal Palace & Tower hotel in Bombay first opens its doors to guests.
December 17 » The Wright brothers make the first controlled powered, heavier-than-air flight in the Wright Flyer at Kitty Hawk, North Carolina.
Day of marriage January 21, 1931
The temperature on January 21, 1931 was between -1.9 °C and 5.4 °C and averaged 2.2 °C. There was 0.1 mm of rain. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south east. Source: KNMI
In The Netherlands , there was from August 10, 1929 to May 26, 1933 the cabinet Ruys de Beerenbrouck III, with Jonkheer mr. Ch.J.M. Ruys de Beerenbrouck (RKSP) as prime minister.
January 21 » Sir Isaac Isaacs is sworn in as the first Australian-born Governor-General of Australia.
February 20 » The U.S. Congress approves the construction of the San Francisco–Oakland Bay Bridge by the state of California.
March 26 » Swissair is founded as the national airline of Switzerland.
July 16 » Emperor Haile Selassie signs the first constitution of Ethiopia.
October 21 » A secret society in the Imperial Japanese Army launches an abortive coup d'état attempt.
December 11 » Statute of Westminster 1931: The British Parliament establishes legislative equality between the UK and the Dominions of the Commonwealth—Australia, Canada, Newfoundland, New Zealand, South Africa, and Ireland.
When copying data from this family tree, please include a reference to the origin: R.A.Hemerik, "Descendants Hemerik-Broekhuizen-Huner-Koper-Barink", database, Genealogy Online (https://www.genealogieonline.nl/parenteel-hemerik/I147112.php : accessed February 14, 2026), "Teunis Develing (1903-)".
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