Google Books Ngram Viewer

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

1800 - 1830 1831 - 1845 1846 - 1910 1911 - 1982 1983 - 2000 umgekehrt als German
1800 - 1834 1835 - 1865 1866 - 1877 1878 - 1952 1953 - 2000 umgekehrt wie German

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