Usage History of 'penguins'

The following chart shows how frequently 'penguins' appeared in printed materials over time. For example, the word 'penguins' occurred 2 times in books in 1605 and 30,021 times in 2008. From 1605 to 2008, the word 'penguins' was used a total of 707,792 times in books scanned by Google. See Reference: Google Ngram project.

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