Google Books Ngram Viewer

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

1800 - 1880 1881 - 1974 1975 - 1983 1984 - 1992 1993 - 2000 seesaw English
1800 - 1818 1819 - 1829 1830 - 1875 1876 - 1952 1953 - 2000 dandle English

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