Usage History of 'unknot'

The following chart shows how frequently 'unknot' appeared in printed materials over time. For example, the word 'unknot' occurred 2 times in books in 1796 and 791 times in 2008. From 1796 to 2008, the word 'unknot' was used a total of 15,154 times in books scanned by Google. See Reference: Google Ngram project.

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