In the question Ubi est Rōma? the word ubi is intelligible only when you get the answer: Rōma est in Italiā. After the short survey of the location of the principal Roman provinces, you are told about various localities: Rhēnus and Nīlus, Corsica and Sardinia, Tūsculum and Brundisium. You will find these names on the map, and the text will tell you what they represent. If you are still in doubt about the meaning of the words fluvius, īnsula and oppidum, turn back to the picture heading the chapter.