Google Books Ngram Viewer

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

1800 - 1813 1814 - 1821 1822 - 1858 1859 - 1945 1946 - 2008 before christ English
1800 - 1842 1843 - 1986 1987 - 1994 1995 - 2001 2002 - 2008 before the common era English
1800 - 1978 1979 - 2003 2004 - 2005 2006 - 2007 2008 before common era English
1800 - 1823 1824 - 1833 1834 - 1842 1843 - 1935 1936 - 2008 before the christian era English
1800 - 1931 1932 - 1993 1994 - 1997 1998 - 2005 2006 - 2008 before the current era English

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