Google Books Ngram Viewer

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

1800 - 1843 1844 - 1976 1977 - 1984 1985 - 1992 1993 - 2000 much research English
1800 - 1819 1820 - 1934 1935 - 1946 1947 - 1962 1963 - 2000 many researches English

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