Google Books Ngram Viewer

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

1900 - 1944 1945 - 1960 1961 - 1963 1964 - 1989 1990 - 2000 caucasoid English
1900 - 1913 1914 - 1968 1969 - 1975 1976 - 1994 1995 - 2000 caucasian English
1900 - 1923 1924 - 1958 1959 - 1963 1964 - 1989 1990 - 2000 mongoloid English
1900 - 1910 1911 - 1946 1947 - 1950 1951 - 1983 1984 - 2000 australoid English
1900 - 1922 1923 - 1964 1965 - 1970 1971 - 1978 1979 - 2000 negroid English

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