Were the buildings in an ancient Roman city numbered, named or something else? How would they tell each other where they lived? Were the numbers painted on the walls? Did they have apartment numbers? What would've happened when they wanted to know where to go? Where would they tell their servants to take them?
I visited Rome and also Pompeii last week. According to our tour guide and the evidence left by the protection provided to the ruins of Pompeii by the eruption of Mount Vesuvius, citizens of Pompeii in 79 AD did have street names and house numbers. Some even had signs in the entry way to their home warning “Cave Canem” or “Beware of Dog”.