Google Books Ngram Viewer

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

1800 - 1813 1814 - 1929 1930 - 1943 1944 - 1972 1973 - 2000 a number of them is English
1800 - 1823 1824 - 1946 1947 - 1961 1962 - 1978 1979 - 2000 a number of them are English

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