Google Books Ngram Viewer

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

1800 - 1820 1821 - 1865 1866 - 1879 1880 - 1961 1962 - 2000 brick and mortar English

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