Google Books Ngram Viewer

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

1900 - 1934 1935 - 1969 1970 - 1972 1973 - 2000 2001 - 2008 to whom am i talking English
1900 - 1938 1939 - 1997 1998 - 2001 2002 - 2005 2006 - 2008 who am i talking to English

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