Honestly, it might be faster and easier to ask what he does find recognisable. Still, the question is valid enough and Azhar inclines his head again.

"... I don't know much about anything beyond the plains. Places like this," the obvious indeed, but from a different angle than "another world" to be certain, "I've been to very rarely. Never this big, or with this many people. I don't know most of the foods written here, or the magic they talk about."

In short, most everything is unprecedented. Including the word unprecedented, which he can only assume means something like "strange" or "unknown" by the rest of the context. It's fine.