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What Happened On 17th September 660 In History

September 17th (660) was a Monday. It's the 259th day of the year (260th in leap years) in the Gregorian calendar. There are 106 days left to the end of the year.

September 17th Holidays in History

  • » Christian feast day:
  • » Albert Avogadro
  • » Ariadne of Phrygia
  • » Hildegard of Bingen
  • » Lambert of Maastricht named Lambert
  • » Robert Bellarmine
  • » Satyrus of Milan
  • » Socrates and Stephen
  • » September 17 (Eastern Orthodox liturgics)
  • » Constitution Day (United States) named Constitution Day (observed on the previous Friday if it falls Saturday, the following Monday if on a Sunday), Citizenship Day, Von Steuben Day. (United States)
  • » Operation Market Garden is still remembered with parachuting and dedications on this day. (Netherlands)

Year 660 historical events for the month of September

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World History for the 17th September