Google Books Ngram Viewer

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

1500 - 1925 1926 - 1950 1951 - 1955 1956 - 2002 2003 - 2008 wahhabi English
1500 - 1821 1822 - 1964 1965 - 1973 1974 - 1985 1986 - 2008 wahabi English
1500 - 1937 1938 - 2003 2004 2005 - 2006 2007 - 2008 wahabbi English

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