Google Books Ngram Viewer

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

1800 - 1817 1818 - 1972 1973 - 1982 1983 - 1992 1993 - 2000 vécurent heureux French
1800 - 1880 1881 - 1973 1974 - 1976 1977 - 1996 1997 - 2000 vécurent heureux et eurent French

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