Google Books Ngram Viewer

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

1950 - 1957 1958 - 1976 1977 - 1979 1980 - 2003 2004 - 2008 gilbert du motier English
1950 - 1955 1956 - 1973 1974 - 1978 1979 - 2005 2006 - 2008 marquis de lafayette English

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