Google Books Ngram Viewer

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

1500 - 1725 1726 - 1787 1788 - 1797 1798 - 1888 1889 - 2008 opulent English

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