Usage History of 'enlightening'

The following chart shows how frequently 'enlightening' appeared in printed materials over time. For example, the word 'enlightening' occurred 2 times in books in 1611 and 47,667 times in 2008. From 1611 to 2008, the word 'enlightening' was used a total of 1,239,568 times in books scanned by Google. See Reference: Google Ngram project.

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