March 1 » Henri Becquerel discovers radioactive decay.
March 2 » The Battle of Adwa: The Italian Army defeated by the Ethiopian Army in Adwa, Tigray, Ethiopia.
September 21 » Anglo-Egyptian conquest of Sudan: British forces under the command of Horatio Kitchener take Dongola.
November 17 » The Western Pennsylvania Hockey League, which later became the first ice hockey league to openly trade and hire players, began play at Pittsburgh's Schenley Park Casino.
December 17 » Pittsburgh, Pennsylvania's Schenley Park Casino, which was the first multi-purpose arena with the technology to create an artificial ice surface in North America, is destroyed in a fire.
December 30 » Canadian ice hockey player Ernie McLea scores the first hat-trick in Stanley Cup play, and the Cup-winning goal as the Montreal Victorias defeat the Winnipeg Victorias 6–5.
Day of death June 12, 1964
The temperature on June 12, 1964 was between 7.5 °C and 26.3 °C and averaged 19.2 °C. There was 13.0 hours of sunshine (78%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the east. Source: KNMI
January 8 » President Lyndon B. Johnson declares a "War on Poverty" in the United States.
February 17 » In Wesberry v. Sanders the Supreme Court of the United States rules that congressional districts have to be approximately equal in population.
June 19 » The Civil Rights Act of 1964 is approved after surviving an 83-day filibuster in the United States Senate.
August 4 » Second Gulf of Tonkin Incident: U.S. destroyers USSMaddox and USSTurner Joy mistakenly report coming under attack in the Gulf of Tonkin.
September 27 » The British TSR-2 aircraft XR219 makes its maiden flight.
November 21 » Second Vatican Council: The third session of the Roman Catholic Church's ecumenical council closes.
When copying data from this family tree, please include a reference to the origin: Annelies de Leede, "Family tree Wim en Annelies de Leede", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-de-leede/I115288.php : accessed January 24, 2026), "Gerard van der Velden (1896-1964)".
Copy warning
Genealogical publications are copyright protected. Although data is often retrieved from public archives, the searching, interpreting, collecting, selecting and sorting of the data results in a unique product. Copyright protected work may not simply be copied or republished.
Please stick to the following rules
Request permission to copy data or at least inform the author, chances are that the author gives permission, often the contact also leads to more exchange of data.
Do not use this data until you have checked it, preferably at the source (the archives).
State from whom you have copied the data and ideally also his/her original source.