Google Books Ngram Viewer

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

1865 - 1908 1909 - 1959 1960 1961 - 2006 2007 - 2008 joshua lawrence chamberlain English
1865 - 1886 1887 - 2000 2001 - 2002 2003 - 2004 2005 - 2008 20th maine English
1865 - 1882 1883 - 1912 1913 - 1914 1915 - 1992 1993 - 2008 little round top English

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