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 - 1933 1934 - 1949 1950 - 1985 1986 - 2000 hard English
1800 - 1828 1829 - 1925 1926 - 1942 1943 - 1981 1982 - 2000 soft English
1800 1801 - 1803 1804 1805 - 1807 1808 - 1969 foft English

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