This book focuses on the delimitation of public spaces within the city wall of ancient Pompeii. Because the original pattern and architectural structures of this city are so well preserved, it provides valuable insight into the urbanism of a Roman city of the 1st century AD. The delimitation of public spaces in the city has here been examined through a study of the boundary stones known as termini. These stones were strongly controlled by municipal legislation, but they were also protected by customary law and religious precepts. Those who damaged or moved the termini, or built their house or any other structure in such a way as to violate the delimiting line marked by the termini, had to pay a penalty, which was imposed by the municipal council or, in some cases, by the emperor.