Google Books Ngram Viewer

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

1600 - 1892 1893 - 1969 1970 - 1978 1979 - 1989 1990 - 2008 exogamy English
1600 - 1948 1949 - 1991 1992 1993 - 2004 2005 - 2008 ventifact English
1600 - 1738 1739 - 1796 1797 - 1816 1817 - 1986 1987 - 2008 tautology English
1600 - 1913 1914 - 1938 1939 1940 - 1987 1988 - 2008 leptorrhine English
1600 - 1847 1848 - 1996 1997 - 2000 2001 - 2004 2005 - 2008 ontology English

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