Google Books Ngram Viewer

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

1730 - 1751 1752 - 1765 1766 - 1767 1768 - 1781 1782 - 2000 zwo German
1730 - 1744 1745 - 1765 1766 - 1768 1769 - 1789 1790 - 2000 zween German
1730 - 1822 1823 - 1879 1880 - 1895 1896 - 1976 1977 - 2000 zwei German

Run your own experiment! Raw data is available for download here.
© 2013 Google - Privacy & Terms - About Google - About Google Books - About Ngram Viewer