[TimonKnigge]

Another example is that in Dutch, the bigram 'ij' is considered a single letter, and so at the beginning of a word, both have to be uppercased. See for example the Dutch Wikipedia page for Iceland: https://nl.wikipedia.org/wiki/IJsland.

[TotempaaltJ]

And it's present in Unicode also! IJ and ij are single characters (try selecting only the i or only the j in those). Their use is discouraged though:

> They are included for compatibility and round-trip convertibility with legacy encodings, but their use is discouraged. Therefore, even with Unicode available, it is recommended to encode ij as two separate letters.