Google Books Ngram Viewer

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

1800 - 1821 1822 - 1922 1923 - 1935 1936 - 1984 1985 - 2008 _ English
1800 - 1892 1893 - 1985 1986 - 1991 1992 - 1998 1999 - 2008 vg English

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