Google Books Ngram Viewer

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

1950 - 1955 1956 - 1991 1992 - 1997 1998 - 2003 2004 - 2008 tidal wave English
1950 - 1969 1970 - 2003 2004 - 2005 2006 2007 - 2008 tsunami English

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