Google Books Ngram Viewer

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

1800 - 1842 1843 - 1907 1908 - 1918 1919 - 1988 1989 - 2000 her brain English
1800 - 1817 1818 - 1887 1888 - 1901 1902 - 1963 1964 - 2000 his brains English

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