Usage History of 'unsinkable'

The following chart shows how frequently 'unsinkable' appeared in printed materials over time. For example, the word 'unsinkable' occurred 2 times in books in 1798 and 2,844 times in 2008. From 1798 to 2008, the word 'unsinkable' was used a total of 78,310 times in books scanned by Google. See Reference: Google Ngram project.

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