Google Books Ngram Viewer

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

1700 - 1774 1775 - 1940 1941 - 1959 1960 - 1977 1978 - 2000 freedom English
1700 - 1764 1765 - 1788 1789 - 1811 1812 - 1964 1965 - 2000 wealth English

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