Google Books Ngram Viewer

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

1800 - 1809 1810 - 1830 1831 1832 - 1979 1980 - 2008 chicon French
1800 - 1808 1809 - 1941 1942 - 1945 1946 - 1988 1989 - 2008 endive French
1800 - 1932 1933 - 1942 1943 - 1945 1946 - 1997 1998 - 2008 witloof French

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