Google Books Ngram Viewer

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

1800 - 1837 1838 - 1848 1849 - 1856 1857 - 1984 1985 - 2000 rock dove English
1800 - 1837 1838 - 1865 1866 - 1870 1871 - 1981 1982 - 2000 rock pigeon English

Run your own experiment! Raw data is available for download here.
© 2013 Google - Privacy & Terms - About Google - About Google Books - About Ngram Viewer