Google Books Ngram Viewer

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

1800 - 1970 1971 - 1998 1999 - 2001 2002 - 2004 2005 - 2008 racist English
1800 - 1823 1824 - 1981 1982 - 1993 1994 - 2001 2002 - 2008 diversity English
1800 - 1820 1821 - 1926 1927 - 1945 1946 - 1990 1991 - 2008 hate English

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