Google Books Ngram Viewer

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

1800 - 1997 1998 - 2005 2006 2007 2008 transgender English
1800 - 1966 1967 - 1996 1997 - 1999 2000 - 2003 2004 - 2008 transvestite English

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