Usage History of 'circumpolar'

The following chart shows how frequently 'circumpolar' appeared in printed materials over time. For example, the word 'circumpolar' occurred 8 times in books in 1686 and 8,470 times in 2008. From 1686 to 2008, the word 'circumpolar' was used a total of 273,592 times in books scanned by Google. See Reference: Google Ngram project.

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