Usage History of 'shackles'

The following chart shows how frequently 'shackles' appeared in printed materials over time. For example, the word 'shackles' occurred 2 times in books in 1588 and 44,320 times in 2008. From 1588 to 2008, the word 'shackles' was used a total of 926,172 times in books scanned by Google. See Reference: Google Ngram project.

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