Google Books Ngram Viewer

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

1780 - 1919 1920 - 2001 2002 - 2004 2005 - 2006 2007 - 2008 terrorism English
1780 - 1803 1804 - 1805 1806 1807 - 1900 1901 - 1996 terrorisme English
1780 - 1823 1824 - 1876 1877 - 1887 1888 - 1977 1978 - 2008 s0 English
1780 - 1849 1850 - 1960 1961 - 1967 1968 - 1994 1995 - 2008 c0 English

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