Google Books Ngram Viewer

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

1800 - 1934 1935 - 1992 1993 - 1997 1998 - 2002 2003 - 2008 who shall i say is English
1800 - 1951 1952 - 1987 1988 - 1990 1991 - 2004 2005 - 2008 whom shall i say is English

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