Google Books Ngram Viewer

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

1800 - 1815 1816 - 1874 1875 - 1890 1891 - 1981 1982 - 2000 stonehenge English
1800 - 1853 1854 - 1904 1905 - 1913 1914 - 1994 1995 - 2000 avebury English
1800 - 1814 1815 - 1872 1873 - 1888 1889 - 1972 1973 - 2000 barrow English

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