Google Books Ngram Viewer

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

1900 - 1974 1975 - 1988 1989 - 1990 1991 - 2006 2007 - 2008 war on drug English
1900 - 1975 1976 - 1999 2000 - 2002 2003 - 2005 2006 - 2008 war on cancer English

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