Google Books Ngram Viewer

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

1900 - 1959 1960 - 1993 1994 - 1996 1997 - 1999 2000 zombie English
1900 - 1957 1958 - 1987 1988 - 1989 1990 - 1996 1997 - 2000 robot English
1900 - 1981 1982 - 1985 1986 1987 - 1999 2000 ninja English
1900 - 1906 1907 - 1923 1924 - 1930 1931 - 1988 1989 - 2000 pirate English
1900 - 1921 1922 - 1981 1982 - 1988 1989 - 1994 1995 - 2000 cowboy English
1900 - 1913 1914 - 1923 1924 - 1932 1933 - 1992 1993 - 2000 alien English
1900 - 1912 1913 - 1970 1971 - 1977 1978 - 1993 1994 - 2000 samurai English

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