Which characters can I use in my legal name?

I want to change my legal name. It won't be anything ridiculous like "iphone" or "1973" etc.

But I do want it to contain special characters, for example… Etc
What is my limit on what can be used? I can't find a guide ANYWHERE.

I'll be changing my first and last name, and adding a middle name. This will be for cultural/society reasons.

Hoping for good news.

Have you ever lost your iPhone/Smartphone?

I left my phone on a bench at school once and it was terrifying not knowing where it was. At the same time I kind of felt like losing it was a good thing, but I found it the next day lol.

Spilled nail polish remover on my iPhone? - 1

I just got a iPhone 5 (shitty phone) but I spilled nail polish remover on it and it didn't touch the screen but it touched the back and you can see water marks when you turn on my phone. It's sitting in rice because that helps with water problems but will this kill my phone? How can I help it?

How to record electronic drums using garage band (an iphone app)?

So i have a cable that connects from my drum's output to my iphone. I also have a splitter so that I can hear it with my headphones. I can hear everything from my headphones. The thing is that when I record from garageband, all I can hear is my drum noise (external) not the real drum sounds. How can I work this out? Please step by step. Or explain simple as possible. Ty!

How to find my lost, dead iPhone?

I've lost my iPhone, and unfortunately it's dead as well. ICloud says it's in my house but I still can't find it! Is there any way I can track it directly to the spot it's in even though it's dead? Please tell me! I do have a mac and access to other iPhone's. My phones been missing for over two days! What websites or apps or ANYTHING can help me?

How to reset the screen lock pin on an iPhone 6+ that is not paired with your iCloud account?

If you buy a used iPhone, take it home, then find out that the screen is still locked with the previous owner's PIN, how do you get into it?

I can't ask him for the PIN directly because a) I don't know him, and b) I'm told that he's abroad with no way to be contacted (I purchased it from his brother).

Note: the "Medical ID" page shows the name and weight of the person who owned the phone *before* the brother of the guy who sold me it, so I don't know if this helps any? (.so it was original owner > 2nd owner > 2nd owners brother > me)