TheMassylii orMaesulians (Neo-Punic:𐤌𐤔𐤋𐤉𐤉𐤌,MŠLYYM[1]) were aBerber[2][3] federation in easternNumidia (central and easternAlgeria),[4] which was formed by an amalgamation of smaller tribes during the 4th century BC.[5] They were ruled by a king. On their loosely defined western frontier were the powerfulMasaesyli. To their east lay the territory of the rich and powerfulCarthaginian Republic. Their relationship to Carthage resembled that of aprotectorate.[5] Carthage maintained its dominance over the Massylii by skillful diplomatic manoeuvering, playing off local tribal and kingdom rivalries.[5] The principal towns of the Massylii wereCirta,Tébessa andThugga in modern-dayAlgeria andTunisia.
In 218 BC, war broke out between the Carthaginians and the Romans. The Massylii and the Masaesyli, who both possessed a strong and proficient cavalry force, were allied to the Carthaginian cause and performed valuable service for them inIberia andItaly.[6] In 206 BC, a Massylian prince calledMasinissa defected to the Romans.[7] When the Romans and Massyli finally defeated the Carthaginians in 202 BC after the battle of Zama, Massinissa took over the territory of the Massylii and the Masaesyli and formed it into one kingdom called Numidia, he established the first unified Berber State in North Africa that is entirely ruled by berbers[3] and ruled it until his death in approximately 148 BC.[8][9]
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