Sesquicentennial

Sesquicentennial is a word used to describe the passage of 150 years. It is often used in reference to an anniversary of an institution or to a historical event.

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The Etymology of Sesquicentennial comes from Latin: sesqui, meaning one-and-a-half, and centennial, which is an event that happens every 100 years.
June 16, 2014

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