Google Books Ngram Viewer

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

1800 - 1932 1933 - 1980 1981 - 1986 1987 - 1993 1994 - 2000 due to a shortage of English
1800 - 1921 1922 - 1945 1946 - 1950 1951 - 1984 1985 - 2000 owing to a shortage of English

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