Google Books Ngram Viewer

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

1950 - 1960 1961 - 1993 1994 - 1996 1997 - 2001 2002 - 2008 the book of documents English
1950 - 1956 1957 - 1965 1966 - 1965 1966 - 1988 1989 - 1999 the classic of history English
1950 - 1953 1954 - 1999 2000 2001 - 2008 2009 - 2008 the classic of documents English
1950 - 1961 1962 - 1991 1992 1993 - 2004 2005 - 2008 the book of historical documents English

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