Google Books Ngram Viewer

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

1900 - 1935 1936 - 1994 1995 - 2000 2001 - 2005 2006 - 2008 savior English
1900 - 1907 1908 - 1923 1924 - 1930 1931 - 1989 1990 - 2008 saviour English

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