Google Books Ngram Viewer

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

1800 - 1847 1848 - 1919 1920 - 1931 1932 - 1991 1992 - 2000 truth be told English
1800 - 1820 1821 - 1892 1893 - 1903 1904 - 1947 1948 - 2000 truth should be told English
1800 - 1833 1834 - 1879 1880 - 1889 1890 - 1935 1936 - 2000 truth must be told English

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