By now you know about the City of Quincy celebrating 175 years of being a chartered city. But do you know the name for a 175th anniversary?  

Most people know a 100th anniversary is a Centennial. A 125th anniversary is known as a Quasquicentennial and a 150th anniversary is known as a  Sesquicentennial. I guarantee that few people know the name of a 175th anniversary or better yet can even spell it.

Actually there are two different names and they are Demisemiseptcentennial or Quartoseptcentennial. There is your water-cooler question of the day.

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