Google Books Ngram Viewer

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

1800 - 1832 1833 - 1881 1882 - 1883 1884 - 1988 1989 - 2000 acknowledge her love English
1800 - 1809 1810 - 1837 1838 - 1839 1840 - 1986 1987 - 2000 acknowledge his love English

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