December 21

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December 21 is the 355th day of the year (356th in leap years) in the Gregorian calendar. 10 days remain until the end of the year.

In the Northern Hemisphere, December 21 is usually the shortest day of the year and is sometimes regarded as the first day of winter. In the Southern Hemisphere, December 21 is usually the longest day of the year and occurs during the southern summer.

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References[]

  1. ^ Stanley Sandler (2002). Ground Warfare: An International Encyclopedia. ABC-CLIO. p. 923. ISBN 978-1-57607-344-5.
  2. ^ Philippe Levillain (2002). The Papacy: Gaius-Proxies. Psychology Press. p. 732. ISBN 978-0-415-92230-2.
  3. ^ Rachewiltz, Igor de; Wang, May (1993). In the Service of the Khan: Eminent Personalities of the Early Mongol-Yüan Period (1200-1300). Otto Harrassowitz Verlag. p. 23. ISBN 978-3-447-03339-8.
  4. ^ Ranter, Harro. "ASN Aircraft accident McDonnell Douglas DC-10-30 F-GTDI Guatemala City-La Aurora Airport (GUA)". aviation-safety.net. Retrieved 2019-09-20.
  5. ^ Bruce Cole (1980). Masaccio and the art of early Renaissance Florence. Indiana University Press. p. 108. ISBN 978-0-253-12298-8.
  6. ^ Ann Hoffmann (1977). Lives of the Tudor Age, 1485-1603. Barnes & Noble Books. p. 476. ISBN 978-0-06-494331-4.
  7. ^ Rajiva Nain Prasad (1966). Raja Mān Singh of Amber. World Press. p. 19.
  8. ^ The American Quarterly Register. The Society. 1841. p. 276.
  9. ^ Andreas D Boldt (29 March 2019). Leopold Von Ranke: A Biography. Taylor & Francis. p. 22. ISBN 978-1-351-04272-7.
  10. ^ Jonathan Parry (23 April 2007). Benjamin Disraeli. OUP Oxford. p. 1. ISBN 978-0-19-164751-2.
  11. ^ Cardozo, Nancy (2000). Maud Gonne. New York: Amsterdam Books. p. 12. ISBN 978-0-9415-3395-9.
  12. ^ Sicherman, Barbara; Hurd Green, Carol (1983). Notable American Women: The Modern Period. Cambridge MA: Belknap. p. 129. ISBN 978-0-6746-2733-8.
  13. ^ Grinstein, Louise S.; Campbell, Paul J. (1987). Women of Mathematics : a Biobibliographic Sourcebook. New York: Greenwood Press. p. 30. ISBN 978-0-3132-4849-8.
  14. ^ Henderson, Harry (2003). A to Z of Computer Scientists. New York: Facts on File. p. 99. ISBN 978-0-8160-4531-0.
  15. ^ Oakes, Elizabeth H. (2007). Encyclopedia of World Scientists. New York: Facts on File. p. 179. ISBN 978-0-8160-6158-7.
  16. ^ Goldstein, Richard (November 21, 2019). "Wat Misaka, First Nonwhite in Modern Pro Basketball, Dies at 95". The New York Times. Retrieved November 22, 2019.
  17. ^ Maxine Block; Anna Herthe Rothe; Marjorie Dent Candee; Charles Moritz (2002). Current Biography Yearbook. H. W. Wilson Company. p. 542.
  18. ^ B. Turner (12 January 2017). The Statesman's Yearbook 2008: The Politics, Cultures and Economies of the World. Springer. p. 502. ISBN 978-1-349-74024-6.
  19. ^ Sophie Pedder (21 June 2018). Revolution Française: Emmanuel Macron and the quest to reinvent a nation. Bloomsbury Publishing. p. 54. ISBN 978-1-4729-4861-8.
  20. ^ "Ronnie Bassett, Jr". racing-reference.info. Retrieved 2019-11-17.
  21. ^ "Kelly Smith". www.ultimaterugby.com. Retrieved 24 June 2020.
  22. ^ Poonawala, Ismail K. (2009). "ʿAlī b. al-Walīd". In Fleet, Kate; Krämer, Gudrun; Matringe, Denis; Nawas, John; Rowson, Everett (eds.). Encyclopaedia of Islam, THREE. Brill Online. doi:10.1163/1573-3912_ei3_COM_22932. ISSN 1873-9830.
  23. ^ Smith, Jessie Carney; Phelps, Shirelle (1996). Notable Black American Women. VNR AG. p. 11. ISBN 978-0-8103-9177-2.
  24. ^ Nowicki, Andrzej (1982). Witwicki (in Polish). Warszawa: Wiedza Powszechna. p. 120. ISBN 83-214-0301-8.
  25. ^ Coveney, Michael (22 December 2014). "Billie Whitelaw obituary". The Guardian. Retrieved 24 June 2020.

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