Google Books Ngram Viewer

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

1800 - 1869 1870 - 1941 1942 - 1953 1954 - 1991 1992 - 2000 traveled English
1800 - 1811 1812 - 1823 1824 - 1834 1835 - 1946 1947 - 2000 travelled English

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