Google Books Ngram Viewer

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

1900 - 1950 1951 - 1985 1986 - 1988 1989 1990 - 2000 proximity fuse English
1900 - 1975 1976 - 1979 1980 1981 - 1994 1995 - 1999 proximity fuze English

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