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 - 1986 1987 - 1991 1992 - 1996 1997 - 2000 gold mine of information English
1900 - 1953 1954 - 1984 1985 - 1987 1988 - 1995 1996 - 2000 goldmine of information English
1900 - 1910 1911 - 1927 1928 - 1934 1935 - 1982 1983 - 2000 mine of information English

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