Below is a video (narrated in Persia) which notes of the citation of “Golfo Persico” (Persian Gulf) on the walls of Rome’s Colosseum

خليج فارس دو هزار سال پيش در ديوار روم هم ثبت شده

The ancient Colosseum of Rome has maps of the ancient world in which the name of Golfo Persico (Persian Gulf) in mentioned. Rome’s citizens would have recognized the body of water as the Golfo Persico.