Amber was carried to Olbia on the Black Sea, Massilia on the Mediterranean, and Hatria at the head of the Adriatic; and from these centres it was distributed over the Hellenic world.
It was connected with Ariminum, 33 miles to the south by the coast road, the Via Popillia, which ran on north to Hatria, and joined the road between Patavium and Altinum at Ad Portum.
ADRIA (anc. Atria; the form Adria or Hadria is less correct: Hatria was a town in Picenum, the modern Atri), a town and episcopal see of Venetia, Italy, in the province of Rovigo, 15 m.
It is known in the coinage of Hatria (18) as 6320.