January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 23 » Second Boer War: The Battle of Spion Kop between the forces of the South African Republic and the Orange Free State and British forces ends in a British defeat.
February 7 » Second Boer War: British troops fail in their third attempt to lift the Siege of Ladysmith.
February 18 » Second Boer War: Imperial forces suffer their worst single-day loss of life on Bloody Sunday, the first day of the Battle of Paardeberg.
February 27 » Fußball-Club Bayern München is founded.
May 17 » The children's novel The Wonderful Wizard of Oz, by L. Frank Baum, is first published in the United States. The first copy is given to the author's sister.
Day of marriage May 13, 1932
The temperature on May 13, 1932 was between 10.6 °C and 21.7 °C and averaged 15.4 °C. There was 3.1 hours of sunshine (20%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the south-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.
January 25 » Second Sino-Japanese War: The Chinese National Revolutionary Army begins the defense of Harbin.
February 4 » Second Sino-Japanese War: Harbin, Manchuria, falls to Japan.
May 20 » Amelia Earhart takes off from Newfoundland to begin the world's first solo nonstop flight across the Atlantic Ocean by a female pilot, landing in Ireland the next day.
May 21 » Bad weather forces Amelia Earhart to land in a pasture in Derry, Northern Ireland, and she thereby becomes the first woman to fly solo across the Atlantic Ocean.
July 30 » Premiere of Walt Disney's Flowers and Trees, the first cartoon short to use Technicolor and the first Academy Award winning cartoon short.
September 10 » The New York City Subway's third competing subway system, the municipally-owned IND, is opened.
Day of death May 21, 1966
The temperature on May 21, 1966 was between 5.4 °C and 16.5 °C and averaged 12.4 °C. There was 3.1 hours of sunshine (19%). The partly or heavily clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the southwest. Source: KNMI
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/I199353.php : accessed October 18, 2026), "Jantje Koops (1900-1966)".
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