Google Books Ngram Viewer

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

1800 - 1831 1832 - 1876 1877 - 1886 1887 - 1972 1973 - 2000 s0 English
1800 - 1877 1878 - 1960 1961 - 1966 1967 - 1990 1991 - 2000 c0 English

Excluding ngrams with part-of-speech tags from search links.

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