Usage History of 'nonvalidity'

The following chart shows how frequently 'nonvalidity' appeared in printed materials over time. For example, the word 'nonvalidity' occurred 6 times in books in 1838 and 40 times in 2008. From 1838 to 2008, the word 'nonvalidity' was used a total of 2,522 times in books scanned by Google. See Reference: Google Ngram project.

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