Google Books Ngram Viewer

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

1800 - 1828 1829 - 1874 1875 - 1887 1888 - 1967 1968 - 2000 post mortem English
1800 - 1880 1881 - 1971 1972 - 1982 1983 - 1992 1993 - 2000 postmortem English

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