Google Books Ngram Viewer

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

1800 - 1864 1865 - 1968 1969 - 1977 1978 - 1987 1988 - 2000 slow rate English
1800 - 1829 1830 - 1920 1921 - 1935 1936 - 1982 1983 - 2000 low rate English

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