January 2 » American statesman and diplomat John Hay announces the Open Door Policy to promote trade with China.
January 6 » Second Boer War: Having already besieged the fortress at Ladysmith, Boer forces attack it, but are driven back by British defenders.
May 1 » The Scofield Mine disaster kills over 200 men in Scofield, Utah in what is to date the fifth-worst mining accident in United States history.
June 25 » The Taoist monk Wang Yuanlu discovers the Dunhuang manuscripts, a cache of ancient texts that are of great historical and religious significance, in the Mogao Caves of Dunhuang, China.
October 9 » The Cook Islands become a territory of the United Kingdom.
November 7 » The People's Party is founded in Cuba.
Day of death September 20, 1975
The temperature on September 20, 1975 was between 9.6 °C and 21.3 °C and averaged 15.6 °C. There was -0.1 mm of rain. There was 3.3 hours of sunshine (27%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest. Source: KNMI
In The Netherlands , there was from Friday, May 11, 1973 to Monday, December 19, 1977 the cabinet Den Uyl, with Drs. J.M. den Uyl (PvdA) as prime minister.
March 10 » Vietnam War: Ho Chi Minh Campaign: North Vietnamese troops attack Ban Mê Thuột in the South on their way to capturing Saigon in the final push for victory over South Vietnam.
March 26 » The Biological Weapons Convention comes into force.
April 13 » An attack by the Phalangist resistance kills 26 militia members of the Popular Front for the Liberation of Palestine, marking the start of the 15-year Lebanese Civil War.
June 1 » The Patriotic Union of Kurdistan was founded by Jalal Talabani, Nawshirwan Mustafa, Fuad Masum and others.
July 12 » São Tomé and Príncipe declare independence from Portugal.
November 25 » Suriname gains independence from the Netherlands.
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/I81020.php : accessed September 29, 2026), "Haye van der Veer (1900-1975)".
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