Google Books Ngram Viewer

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

1500 - 1848 1849 - 1980 1981 - 1990 1991 - 1999 2000 - 2008 on tomorrow English
1500 - 1626 1627 - 1979 1980 - 1991 1992 - 2002 2003 - 2008 tomorrow English

Excluding ngrams with part-of-speech tags from search links.

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