Google Books Ngram Viewer

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

1840 - 1859 1860 - 1922 1923 - 1931 1932 - 1978 1979 - 2008 balderdash English

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