Google Books Ngram Viewer

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

1800 - 1859 1860 - 1920 1921 - 1926 1927 - 1966 1967 - 2000 sanatariums English
1800 - 1859 1860 - 1872 1873 - 1876 1877 - 1966 1967 - 2000 sanataria English

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