January 17 » El Yunque National Forest in Puerto Rico becomes part of the United States National Forest System as the Luquillo Forest Reserve.
March 14 » Pelican Island National Wildlife Refuge, the first national wildlife refuge in the US, is established by President Theodore Roosevelt.
June 16 » The Ford Motor Company is incorporated.
August 2 » The Ilinden–Preobrazhenie Uprising against the Ottoman Empire begins.
November 18 » The Hay–Bunau-Varilla Treaty is signed by the United States and Panama, giving the United States exclusive rights over the Panama Canal Zone.
December 30 » A fire at the Iroquois Theater in Chicago, Illinois kills at least 605.
Day of marriage August 17, 1927
The temperature on August 17, 1927 was between 9.4 °C and 20.1 °C and averaged 15.0 °C. There was 0.6 mm of rain. There was 11.4 hours of sunshine (78%). 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 9 » Old Parliament House, Canberra officially opens.
May 22 » Near Xining, China, an 8.3 magnitude earthquake causes 200,000 deaths in one of the world's most destructive earthquakes.
July 23 » The first station of the Indian Broadcasting Company goes on the air in Bombay.
July 24 » The Menin Gate war memorial is unveiled at Ypres.
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.
Day of death May 22, 1931
The temperature on May 22, 1931 was between 7.6 °C and 16.5 °C and averaged 11.4 °C. There was 2.2 mm of rain during 1.8 hours. There was 4.6 hours of sunshine (29%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. 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.
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/I199165.php : accessed October 12, 2026), "Albert Heerema (1903-1931)".
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