Ping....
One petroglyph was translated: it said, in English - “Kilroy was here”.
Really wrecked the archaeological timeline as to who discovered Norway first, the Swedes or the Brits. (I know that Kilroy was an American character, but Norway is a bit older than America so we couldn’t have discovered it unless we were into time travel, and Norway would not be on our travel agenda. Tahiti would, though.)