Usage History of 'biophilia'

The following chart shows how frequently 'biophilia' appeared in printed materials over time. For example, the word 'biophilia' occurred 3 times in books in 1857 and 2,215 times in 2008. From 1857 to 2008, the word 'biophilia' was used a total of 30,560 times in books scanned by Google. See Reference: Google Ngram project.

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