Google Books Ngram Viewer

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

1500 - 1781 1782 - 1824 1825 - 1836 1837 - 1953 1954 - 2018 cheltenham English

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