Google Books Ngram Viewer

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

1770 - 1790 1791 - 1806 1807 - 1864 1865 - 1977 1978 - 2009 liberté French
1770 - 1794 1795 - 1847 1848 - 1867 1868 - 1994 1995 - 2009 égalité French
1770 - 1821 1822 - 1848 1849 - 1863 1864 - 1992 1993 - 2009 fraternité French
1770 - 1932 1933 - 2001 2002 - 2004 2005 - 2006 2007 - 2009 laïcité French

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