Google Books Ngram Viewer

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

1800 - 1850 1851 - 1873 1874 - 1875 1876 - 1978 1979 - 2000 mythicism English
1800 - 1893 1894 - 1993 1994 - 1996 1997 - 1998 1999 - 2000 holy grail English
1800 - 1844 1845 - 1974 1975 - 1984 1985 - 1992 1993 - 2000 gnosticism English

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