Google Books Ngram Viewer

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

1800 - 1816 1817 - 1878 1879 - 1891 1892 - 1993 1994 - 2008 peri English

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