Google Books Ngram Viewer

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

1910 - 1953 1954 - 1983 1984 - 1985 1986 - 1993 1994 - 2000 planted question English
1910 - 1983 1984 - 1993 1994 1995 - 1999 2000 softball question English

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