Usage History of 'ballista'

The following chart shows how frequently 'ballista' appeared in printed materials over time. For example, the word 'ballista' occurred 8 times in books in 1707 and 4,945 times in 2008. From 1707 to 2008, the word 'ballista' was used a total of 35,155 times in books scanned by Google. See Reference: Google Ngram project.

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