Google Books Ngram Viewer

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

1800 - 1816 1817 - 1848 1849 - 1858 1859 - 1951 1952 - 2000 spoiler English

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