Google Books Ngram Viewer

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

1800 - 1965 1966 - 1995 1996 - 1997 1998 - 1999 2000 autism English
1800 - 1881 1882 - 1976 1977 - 1984 1985 - 1992 1993 - 2000 social English

Run your own experiment! Raw data is available for download here.
© 2013 Google - Privacy & Terms - About Google - About Google Books - About Ngram Viewer