Google Books Ngram Viewer

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

1800 - 1862 1863 - 1980 1981 - 1989 1990 - 2000 2001 - 2008 our staff is English
1800 - 1930 1931 - 1950 1951 - 1955 1956 - 1999 2000 - 2008 our staff are English

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