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 - 1984 1985 - 1989 1990 - 2002 2003 - 2008 darius i English
1950 - 1952 1953 - 1972 1973 - 1977 1978 - 2003 2004 - 2008 darius ii English
1950 - 1953 1954 - 1964 1965 - 1969 1970 - 2002 2003 - 2008 darius iii English

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