Google Books Ngram Viewer

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

1800 - 1856 1857 - 1928 1929 - 1940 1941 - 1991 1992 - 2008 two girls English
1800 - 1838 1839 - 1912 1913 - 1920 1921 - 1988 1989 - 2008 one cup English

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