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 - 1820 1821 - 1941 1942 - 1961 1962 - 1980 1981 - 2000 in English
1800 - 1857 1858 - 1930 1931 - 1941 1942 - 1983 1984 - 2000 girls English

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