Google Books Ngram Viewer

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

1900 - 1911 1912 - 1940 1941 - 1948 1949 - 1987 1988 - 2000 monopoly English
1900 - 1951 1952 1953 - 1958 1959 - 1962 1963 - 1975 polypoly English
1900 - 1957 1958 - 1973 1974 1975 - 1985 1986 - 1993 multipoly English

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