Google Books Ngram Viewer

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

1700 - 1801 1802 - 1803 1804 - 1805 1806 - 1978 1979 - 2000 receival English

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