January 30 » The first Anglo-Japanese Alliance is signed in London.
April 2 » Dmitry Sipyagin, Minister of Interior of the Russian Empire, is assassinated in the Marie Palace, Saint Petersburg.
April 14 » James Cash Penney opens his first store in Kemmerer, Wyoming.
April 20 » Pierre and Marie Curie refine radium chloride.
November 29 » The Pittsburgh Stars defeated the Philadelphia Athletics, 11–0 to win the first championship associated with an American national professional football league.
December 10 » The opening of the reservoir of the Aswan Dam in Egypt.
Day of marriage July 6, 1927
The temperature on July 6, 1927 was between 14.4 °C and 22.8 °C and averaged 18.3 °C. There was 2.2 mm of rain. There was 7.8 hours of sunshine (47%). The average windspeed was 3 Bft (moderate breeze) and was prevailing from the northeast. Source: KNMI
February 23 » U.S. President Calvin Coolidge signs a bill by Congress establishing the Federal Radio Commission (later replaced by the Federal Communications Commission) which was to regulate the use of radio frequencies in the United States.
May 4 » The Academy of Motion Picture Arts and Sciences is incorporated.
May 18 » The Bath School disaster: Forty-five people, including many children, are killed by bombs planted by a disgruntled school-board member in Michigan.
May 27 » The Ford Motor Company ceases manufacture of the Ford Model T and begins to retool plants to make the Ford Model A.
June 26 » The Cyclone roller coaster opens on Coney Island.
November 21 » Columbine Mine massacre: Striking coal miners are allegedly attacked with machine guns by a detachment of state police dressed in civilian clothes.
Day of death April 30, 1969
The temperature on April 30, 1969 was between -0.2 °C and 13.6 °C and averaged 7.8 °C. There was 0.1 mm of rain. There was 9.8 hours of sunshine (66%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the north-northeast. Source: KNMI
January 14 » USS Enterprise fire: An accidental explosion aboard the USSEnterprise near Hawaii kills 28 people.
April 15 » The EC-121 shootdown incident: North Korea shoots down a United States Navy aircraft over the Sea of Japan, killing all 31 on board.
May 16 » Venera program: Venera 5, a Soviet space probe, lands on Venus.
May 21 » Civil unrest in Rosario, Argentina, known as Rosariazo, following the death of a 15-year-old student.
August 11 » The Apollo 11 astronauts are released from a three-week quarantine following their liftoff from the moon.
December 9 » U.S. Secretary of State William P. Rogers proposes his plan for a ceasefire in the War of Attrition; Egypt and Jordan accept it over the objections of the PLO, which leads to civil war in Jordan in September 1970.
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/I102695.php : accessed October 19, 2026), "Petronella "Nellie" van der Heide (1902-1969)".
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