Google Books Ngram Viewer

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

1800 - 1823 1824 - 1842 1843 - 1860 1861 - 2000 2001 - 2008 a bald eagle English
1800 - 1822 1823 - 1832 1833 - 1876 1877 - 1992 1993 - 2008 the bald eagle English

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