Google Books Ngram Viewer

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

1800 - 1891 1892 - 1971 1972 - 1975 1976 - 1996 1997 - 2010 jdh English

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