Google Books Ngram Viewer

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

1800 - 1830 1831 - 1931 1932 - 1947 1948 - 1982 1983 - 2000 route English
1800 - 1829 1830 - 1947 1948 - 1966 1967 - 1985 1986 - 2000 path English

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