<prompt> Translate the following text to EnglishNi vigumu kuamini kwamba Las Vegas, mji wa kiasi cha hadithi, ilianza kama kidogo zaidi ya kuacha reli ya vumbi katikati ya bonde la jangwa lisilo na rutuba.  <response>: It is hard to believe that Las Vegas a city of mythic proportion started out as little more than a dusty railroad stop in the middle of a barren and unforgiving desert valley. 