[whatatita]

The always relevant CGP Grey: https://www.youtube.com/watch?v=rNu8XDBSn10

Skip to 5:00 for a beautiful diagram outlining the mess.

[russellbeattie]

I assumed this link would have been one of the top comments! All the other links in this thread combined don't shed light on the topic nearly as well as CGP Grey's video.

[donalhunt]

Probably explains the lack of a constitution too. No one dares to try and document it!