Google Books Ngram Viewer

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

1800 - 1818 1819 - 1967 1968 - 1980 1981 - 1991 1992 - 2000 inequality English
1800 - 1811 1812 - 1823 1824 - 1864 1865 - 1962 1963 - 2000 injustice English
1800 - 1830 1831 - 1922 1923 - 1940 1941 - 1984 1985 - 2000 unfairness English

Run your own experiment! Raw data is available for download here.
© 2013 Google - Privacy & Terms - About Google - About Google Books - About Ngram Viewer