Are there any other languages that capitalize their version of I?

In German, all nouns are capitalized. I can’t remember if pronouns are as well, but perhaps that is where the whole thing comes from.

@KatawaGrey pronouns are not capitalized (except for the formal second person, Sie). “I” is “ich”.

@bob_ So, nouns are capitalized except for pronouns?

We capitalize simply for legibility. I stands out more than i.
http://www.nytimes.com/2008/08/03/magazine/03wwln-guestsafire-t.html

@Aethelflaed Well, pronouns aren’t nouns…

@bob_ Just checking to make sure I was understanding the rule (and pronouns are nouns, just a special subcategory…).

I know this isn’t much help, but according to the Google translator, neither French, Italian, nor Spanish capitalize the first person pronoun.

Hmmm, I don’t know one word of Haitian Creole, but according to this, HC capitalizes the FPP.

@Brian1946 I would not trust Google translate in the case of HC. When I type I, it returns Mwen, but when I type i, it returns mwen.

Yes, in German the pronoun for the formal version of you (Sie, Ihre, Ihren, Ihrem etc.) is capitalized. In letters the informal you can be capitalized as well (Du, Dein, Dich etc.).

In Dutch we used to capitalize the U (you), but we don’t (have to) anymore.
We can do it though, but it is viewed as to create distance between the person that is being addressed (that is why it is done by some in job application letters, etc.).

@PhiNotPi

The GT is consistent in capitalizing the FPP in Swedish.

I never noticed that in Swedish before. I’ll have to ask my Swedish friends.

Like German, Norwegian has an old, formal way of addressing people in which pronouns are capitalised, but it is hardly ever done any more. When I write something, I never capitalise the ‘jeg’ or ‘du’ or ‘deg’.

According to this, in Russian it’s capitalized when you’re writing formally.