Google Books Ngram Viewer

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

1800 - 1860 1861 - 1992 1993 - 1999 2000 - 2004 2005 - 2008 a time where English
1800 - 1815 1816 - 1830 1831 - 1887 1888 - 1988 1989 - 2008 a time in which English

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