Google Books Ngram Viewer

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

1750 - 1803 1804 - 1818 1819 - 1822 1823 - 1888 1889 - 1900 holly bush English
1750 - 1791 1792 - 1833 1834 - 1841 1842 - 1885 1886 - 1900 holly tree English

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