Google Books Ngram Viewer

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

1800 - 1810 1811 - 1821 1822 - 1831 1832 - 1958 1959 - 2000 religion English
1800 - 1840 1841 - 1968 1969 - 1980 1981 - 1991 1992 - 2000 politics English

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