Google Books Ngram Viewer

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

1900 - 1942 1943 - 1984 1985 - 1990 1991 - 1996 1997 - 2000 insofar English
1900 - 1942 1943 - 1984 1985 - 1990 1991 - 1996 1997 - 2000 insofar as English

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