Google Books Ngram Viewer

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

1700 - 1726 1727 - 1778 1779 - 1797 1798 - 1945 1946 - 2008 heureux French

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