Iulia Constantia Zilil (called later Arzeila) was an ancient Roman-Berber city in Dchar Jdid, located 40 km southwest of Tangier and 13 km northeast of Asilah. It was one of the three colonias in Mauretania Tingitana (in northern Morocco) founded by emperor Augustus between 33 and 25 BC for veterans of the battle of Actium.

History

Iulia Constantia Zilil was originally one of many western Berber towns in the province of Mauretania Tingitana. The old church is the only one found in Atlantic Morocco, and was related to Christian adherence among Romanised Berbers. But evidences show that the city remained populated as a small fishing village until the Arab invasion in the early 8th century.

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