Google Books Ngram Viewer

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

1900 - 1911 1912 - 1987 1988 - 1993 1994 - 1997 1998 - 2000 welcoming to English
1900 - 1913 1914 - 1979 1980 - 1988 1989 - 1995 1996 - 2000 welcoming of English

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