Google Books Ngram Viewer

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

1800 - 1832 1833 - 1931 1932 - 1945 1946 - 1978 1979 - 2000 grey English
1800 - 1826 1827 - 1885 1886 - 1897 1898 - 1968 1969 - 2000 gray English

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