 Luna was the frontier town of Etruria, on the left bank of the river Macra (now Magra), the boundary in imperial times between Etruria and Liguria.When the Romans first appeared in these parts, Etruscans and the Ligurians were already in possession of the territory.The Roman city was established in 177 BC by Publius Aelius, Marcus Aemilius Lepidus and Gnaeus Sicinius It was a military stronghold for the campaigns against the Ligures.