Google Books Ngram Viewer

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

1600 - 1912 1913 - 1983 1984 - 1989 1990 - 1995 1996 - 2000 tiredness English
1600 - 1685 1686 - 1881 1882 - 1900 1901 - 1949 1950 - 2000 weariness English

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