Usage History of 'impassiveness'

The following chart shows how frequently 'impassiveness' appeared in printed materials over time. For example, the word 'impassiveness' occurred 4 times in books in 1701 and 2,051 times in 2008. From 1701 to 2008, the word 'impassiveness' was used a total of 30,166 times in books scanned by Google. See Reference: Google Ngram project.

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