Google Books Ngram Viewer

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

1500 - 1879 1880 - 1940 1941 - 1946 1947 - 1992 1993 - 2008 tank English
1500 - 1661 1662 - 1694 1695 - 1718 1719 - 1953 1954 - 2008 think English

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