Google Books Ngram Viewer

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

1800 - 1896 1897 - 1940 1941 - 1942 1943 - 1988 1989 - 2008 segelflug German

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