Google Books Ngram Viewer

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

1940 - 1960 1961 - 1962 1963 - 1973 1974 - 2000 2001 - 2008 nuclear tests English
1940 - 1962 1963 - 1965 1966 - 1983 1984 - 2002 2003 - 2008 nuclear testing English

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