Usage History of 'psychologies'

The following chart shows how frequently 'psychologies' appeared in printed materials over time. For example, the word 'psychologies' occurred 2 times in books in 1756 and 7,537 times in 2008. From 1756 to 2008, the word 'psychologies' was used a total of 241,002 times in books scanned by Google. See Reference: Google Ngram project.

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