About the day » Friday October 21, 1966Calender converter

• Gerhard Anno Erenstein, Sneek
• Dennis Bijl, Rijswijk († 2017)
• Bartholomeus Petrus Paulus Verzuu, Bilthoven, Utrecht, Nederland
• Ludwig Michel SEGERS, Dendermonde,9200,Flandre Orientale,Flandre,BELGIQUE († 1998)
• Marc Voets, Tilburg († 1987)
• Gerard Anno Erenstein, Sneek
• René Weerkamp, Enschede, Overijssel, Nederland
• Aaltje Weggemans, Roswinkel, Emmen († 1967)
• Patrick Vandeweyer, Hasselt, België († 1991)
• Robert Uitdewillegen, Wouw

• Catharina Matthieu (88), Amsterdam
• Bernardus Casparus Alphonsus Ruts (63), Schiedam
• Antje Johanna Pruis (85), Hilversum
• Alphonse Croes (66), Tourcoing (F)
• Carel Wilhelm Vreede (79)
• Berend Hendrik Foppe Lubbers (54), Amersfoort, Utrecht, Nederland
• Carolina Jacoba Johanna Maria Roodnat (62), Zuilen (Utrecht)
• Antje van der Vis (69), Den Burg (Texel, NH)
• Albertus Hagens (67)
• Antje Johanna Pruis (85), Hilversum

• 1964 » Jon Carin, American singer-songwriter, guitarist, and producer
• 1965 » Hisashi Imai, Japanese singer-songwriter and guitarist
• 1965 » Horace Hogan, American wrestler
• 1965 » Ion Andoni Goikoetxea, Spanish footballer and manager
• 1966 » Arne Sandstø, Norwegian footballer and manager
• 1966 » Igor Prins, Estonian footballer and manager
• 1966 » Phillip Price, Welsh golfer
• 1967 » Gavin Lovegrove, New Zealand javelin thrower and graphic designer
• 1967 » Georgi Dakov, Bulgarian high jumper († 1996)
• 1967 » Paul Ince, English footballer and manager

• 1963 » Józef Franczak, Polish sergeant (b. 1918)
• 1965 » Bill Black, American bass player and bandleader (b. 1926)
• 1969 » Jack Kerouac, American novelist and poet (b. 1922)
• 1969 » Wacław Sierpiński, Polish mathematician and academic (b. 1882)
• 1970 » Li Linsi, Chinese educator and diplomat (b. 1896)
• 1971 » Minnie Evans, Potawatomi leader (b. 1888)
• 1973 » Nasif Estéfano, Argentinian race car driver (b. 1932)
• 1975 » Charles Reidpath, American runner and general (b. 1887)
• 1977 » Ferit Tüzün, Turkish composer (b. 1929)
• 1978 » Anastas Mikoyan, Armenian-Russian civil servant and politician (b. 1895)

• Koningin Juliana (Huis van Oranje-Nassau) was from September 4, 1948 till April 30, 1980 sovereign of the Netherlands (also known as Koninkrijk der Nederlanden)
• In The Netherlands , there was from April 14, 1965 to November 22, 1966 the cabinet Cals, with Mr. J.M.L.Th. Cals (KVP) as prime minister.
• In The Netherlands , there was from November 22, 1966 to April 5, 1967 the cabinet Zijlstra, with Prof. dr. J. Zijlstra (ARP) as prime minister.
• The Netherlands had about 12.4 million citizens.
• March 10 » Military Prime Minister of South Vietnam Nguyễn Cao Kỳ sacked rival General Nguyễn Chánh Thi, precipitating large-scale civil and military dissension in parts of the nation.
• April 26 » The magnitude 5.1 Tashkent earthquake affects the largest city in Soviet Central Asia with a maximum MSK intensity of VII (Very strong). Tashkent is mostly destroyed and 15–200 are killed.
• April 30 » The Church of Satan is formed in The Black House, San Francisco.
• June 8 » Topeka, Kansas, is devastated by a tornado that registers as an "F5" on the Fujita scale: The first to exceed US$100million in damages. Sixteen people are killed, hundreds more injured, and thousands of homes damaged or destroyed.
• July 2 » France conducts its first nuclear weapon test in the Pacific, on Moruroa Atoll.
• November 4 » The Arno River floods Florence, Italy, to a maximum depth of 6.7m (22ft), leaving thousands homeless and destroying millions of masterpieces of art and rare books. Also Venice was submerged on the same day at its record all-time acqua alta of 194cm (76in).

The temperature on October 21, 1966 was between 8.0 °C and 15.2 °C and averaged 10.8 °C. There was 0.8 mm of rain during 1.1 hours. There was 1.7 hours of sunshine (16%). The partly clouded was. The average windspeed was 2 Bft (weak wind) and was prevailing from the south-southwest.