Google Books Ngram Viewer

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

1500 - 1873 1874 - 1974 1975 - 1989 1990 - 2000 2001 - 2008 triptyque French

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