Google Books Ngram Viewer

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

1540 - 1679 1680 - 1836 1837 - 1861 1862 - 1966 1967 - 2008 liberté French
1540 - 1749 1750 - 1846 1847 - 1868 1869 - 1985 1986 - 2008 égalité French
1540 - 1818 1819 - 1848 1849 - 1863 1864 - 1989 1990 - 2008 fraternité French

Run your own experiment! Raw data is available for download here.
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