Y'all? Isn't that part of a ship?
I've been to areas where the language spoken was very strange. My mother one time had to point to what she wanted on the menu because the waitress at the diner and she couldn't understand each other. OK, that was Texas, but that was still (in theory) English. For fun, I refer you to "Why can't the English Teach their Children How to Speak?", "The Silly Slang Song", and "The Keltie Klippie". (My Fair Lady, I recommend the Geraldine Doyle version, and North Sea Gas if you need sources)
Language and accents are funny. Everyone seems to think native californians speak like surfers or valley girls. One person I met from the mid-west trained herself in valley-speak for when she moved out here. (very sad--I was never able to take her seriously because she sounded like a sorority chick). People ask where I'm from, and don't believe me. I've been accused of being from Brittain, England, Scotland, Ireland, Germany, Australia, Back East, Up North, and The South (huh?!?!?!?). I guess it was too much BBC and Celtic Music.
Getting back on track, considering the US has produced such fine products as "Meat-Wizz" (like cheese-wizz or spray on cheese, only with (mystery) meat--I kid you not), I don't think we're in a position to claim any glory. Probably the only thing more disgusting than Marmite.
I don't think anyone else produced easy riser ladders for geriatric pets to get onto beds/couches.
In spite of ample evidence that it doesn't work, USA continues several Prohibition laws.
I can name only one other country that refuses to figure out how to incorporate homosexuality into military regs.