Google Books Ngram Viewer

Graph these comma-separated phrases:
case-insensitive
between and from the corpus with smoothing of .  
Search in Google Books:

1800 - 1920 1921 - 1987 1988 - 1991 1992 - 1995 1996 - 2000 to whomever is English
1800 - 1823 1824 - 1966 1967 - 1979 1980 - 1990 1991 - 2000 to whoever is English

Run your own experiment! Raw data is available for download here.
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