The temperature on March 7, 1927 was between 3.6 °C and 7.5 °C and averaged 5.5 °C. There was 4.6 mm of rain. There was 0.2 hours of sunshine (2%). The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south. 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 5 » To the Lighthouse by Virginia Woolf is first published.
July 15 » Massacre of July 15, 1927: Eighty-nine protesters are killed by the Austrian police in Vienna.
August 1 » The Nanchang Uprising marks the first significant battle in the Chinese Civil War between the Kuomintang and Chinese Communist Party. This day is commemorated as the anniversary of the founding of the People's Liberation Army.
September 22 » Jack Dempsey loses the "Long Count" boxing match to Gene Tunney.
December 3 » Putting Pants on Philip, the first Laurel and Hardy film, is released.
Day of death April 25, 1964
The temperature on April 25, 1964 was between 6.3 °C and 10.1 °C and averaged 7.8 °C. There was 0.1 mm of rain. The almost completely overcast was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north-northeast. Source: KNMI
January 11 » Surgeon General of the United States Dr. Luther Terry, M.D., publishes the landmark report Smoking and Health: Report of the Advisory Committee to the Surgeon General of the United States saying that smoking may be hazardous to health, sparking national and worldwide anti-smoking efforts.
August 4 » Civil rights movement: Civil rights workers Michael Schwerner, Andrew Goodman and James Chaney are found dead in Mississippi after disappearing on June 21.
August 12 » South Africa is banned from the Olympic Games due to the country's racist policies.
September 27 » The British TSR-2 aircraft XR219 makes its maiden flight.
November 2 » King Saud of Saudi Arabia is deposed by a family coup, and replaced by his half-brother Faisal.
November 28 » Vietnam War: National Security Council members agree to recommend that U.S. President Lyndon B. Johnson adopt a plan for a two-stage escalation of bombing in North Vietnam.
When copying data from this family tree, please include a reference to the origin: Hendrik Dreyer, "Dreyer Tree", database, Genealogy Online (https://www.genealogieonline.nl/dreyer-tree/I16505.php : accessed January 26, 2026), "Jacob Gustaf Letterstedt Dreyer (1894-1964)".
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