Google Books Ngram Viewer

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

1800 - 1806 1807 - 1815 1816 - 1824 1825 - 1950 1951 - 2008 farther than English
1800 - 1820 1821 - 1838 1839 - 1855 1856 - 1982 1983 - 2008 further than English

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