Google Books Ngram Viewer

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

1800 - 1942 1943 - 1945 1946 - 1964 1965 - 1993 1994 - 2000 some aircraft English
1800 - 1947 1948 - 1978 1979 1980 - 1988 1989 - 2000 some aircrafts English

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