Google Books Ngram Viewer

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

1800 - 1844 1845 - 1937 1938 - 1950 1951 - 1982 1983 - 2000 by foot English
1800 - 1813 1814 - 1855 1856 - 1869 1870 - 1954 1955 - 2000 on foot English

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