Google Books Ngram Viewer

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

1900 - 1908 1909 - 1924 1925 - 1932 1933 - 1984 1985 - 2000 as to which English

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