After a century, a wall around the city was created from large blocks. Epizephyrian Locri was one of the most important cities in Magna Graecia. It was renowned for its lawgiver Zaleucus, who required that anyone who proposed a change in his laws should do so with a noose about his neck, with which he should be hanged if the amendment did not pass.
In the early centuries Locri was allied with Sparta, and later with Syracuse. It founded two colonies of its own, Hipponion and Medma.