Google Books Ngram Viewer

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

1850 - 1860 1861 - 1872 1873 - 1882 1883 - 1981 1982 - 2000 prefer this to English
1850 - 1972 1973 - 1989 1990 1991 - 1999 2000 prefer this over English

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