Google Books Ngram Viewer

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

1800 - 1806 1807 - 1811 1812 - 1832 1833 - 1918 1919 - 2000 is expired English
1800 - 1836 1837 - 1873 1874 - 1886 1887 - 1970 1971 - 2000 has expired English

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