Google Books Ngram Viewer

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

1800 - 1879 1880 - 1908 1909 - 1917 1918 - 1996 1997 - 2008 dryptosaurus English
1800 - 1890 1891 - 1957 1958 1959 - 1969 1970 - 1982 laelaps English

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