Google Books Ngram Viewer

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

1800 - 1947 1948 - 1986 1987 - 1990 1991 - 1994 1995 - 2000 underway English
1800 - 1861 1862 - 1941 1942 - 1949 1950 - 1984 1985 - 2000 under way English

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