The temperature on September 18, 1964 was between 9.3 °C and 16.1 °C and averaged 12.2 °C. There was 0.8 mm of rain during 0.7 hours. There was 6.8 hours of sunshine (54%). The partly clouded was. The average windspeed was 3 Bft (moderate breeze) and was prevailing from the west-southwest. 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.
February 27 » The Government of Italy asks for help to keep the Leaning Tower of Pisa from toppling over.
June 19 » The Civil Rights Act of 1964 is approved after surviving an 83-day filibuster in the United States Senate.
June 21 » Three civil rights workers, Andrew Goodman, James Chaney and Michael Schwerner, are murdered in Neshoba County, Mississippi, United States, by members of the Ku Klux Klan.
December 5 » Lloyd J. Old discovered the first linkage between the major histocompatibility complex (MHC) and disease—mouse leukemia—opening the way for the recognition of the importance of the MHC in the immune response.
December 11 » Che Guevara speaks at the United Nations General Assembly in New York City.
Day of death July 9, 1984
The temperature on July 9, 1984 was between 15.5 °C and 29.8 °C and averaged 21.4 °C. There was 12.5 mm of rain during 1.8 hours. There was 11.3 hours of sunshine (68%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the north. Source: KNMI
In The Netherlands , there was from Thursday, November 4, 1982 to Monday, July 14, 1986 the cabinet Lubbers I, with Drs. R.F.M. Lubbers (CDA) as prime minister.
February 3 » John Buster and the research team at Harbor-UCLA Medical Center announce history's first embryo transfer, from one woman to another resulting in a live birth.
May 8 » Corporal Denis Lortie enters the Quebec National Assembly and opens fire, killing three people and wounding 13. René Jalbert, Sergeant-at-Arms of the Assembly, succeeds in calming him, for which he will later receive the Cross of Valour.
July 1 » The PG-13 rating is introduced by the MPAA.
September 14 » Joe Kittinger becomes the first person to fly a gas balloon alone across the Atlantic Ocean.
October 16 » Desmond Tutu is awarded the Nobel Peace Prize.
December 4 » Sri Lankan Civil War: Sri Lankan Army soldiers kill 107–150 civilians in Mannar.
When copying data from this family tree, please include a reference to the origin: Hendrik de Graaf, "Family tree Plugboer", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-plugboer/I9993.php : accessed February 2, 2026), "Jan Willem Glas (1964-1984)".
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