Usage History of 'auroral'

The following chart shows how frequently 'auroral' appeared in printed materials over time. For example, the word 'auroral' occurred 2 times in books in 1734 and 6,386 times in 2008. From 1734 to 2008, the word 'auroral' was used a total of 474,135 times in books scanned by Google. See Reference: Google Ngram project.

See also:

Find all anagrams of 'auroral'
Words starting with a,b,c...
Words ending with a,b,c...
Words starting & ending with a,b,c....