Google Books Ngram Viewer

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

1500 - 1751 1752 - 1754 1755 - 1757 1758 - 1785 1786 - 2008 zwo German

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