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Universal Numbers

Create universal numbers by comparing the edit distance between all numbers from wikitravel's phrasebooks and for each picking the 'median' one. As a side effect, create a tree an evolutionary tree.

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Here are the universal numbers and the languages they come from. Learn to count this way and you have the highest chance to be understood if you are talking to a random person (admittedly still not a very high chance, but still).

You can find the code on

As a side effect of comparing all languages with all languages, we also end up with a distance matrix for language to language. We can easily create a tree out of this:

You can read more about this on the corresponding blog post.