Google Books Ngram Viewer

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

1850 - 1861 1862 - 1872 1873 - 1881 1882 - 1976 1977 - 2000 philology English
1850 - 1951 1952 - 1977 1978 - 1981 1982 - 1996 1997 - 2000 linguistics English

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