Google Books Ngram Viewer

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

1900 - 1954 1955 - 1988 1989 - 1992 1993 - 1996 1997 - 2000 deceptively simple English
1900 - 1959 1960 - 1993 1994 - 1996 1997 - 1999 2000 deceptively complex English

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