Original sentence: An African origin has been posited, though it is not certain and the complex is still relatively unanalyzed
Edited sentence: Coastal North Africa became Semitic by the 800BC via the Phoenicians, before that it was Berber.East Africa first Semitic nation Dam't was a Yemeni settlemnt.East Africa til this day is not completely Semitic and the Cushites preceeded the Semites, although the Semitic culture is the domiant today.Mesopotamia became Semitic by 2300BC, before that it was Sumerian.Some African activists claim that an African origin has been posited, though it is not certain and the complex is still relatively unanalyzed.Syria Amorites were under Sumerian influence, before being Assimilated by the Semites 2300BC.The culturally superior Semites of Yemen began settling the Ethiopian highlands.These settlements wll reach their cimax by the 8th century BC.Whats known is that theese cultures will give rise to Dam't and Aksum kingdoms.Yemen desert regions (Rub'a Alkhali and Syahad) was the core of the Nomadic Semites that will migrate to the North sttling Akkad and later penetrating Mesopotamia  eventually conquering Sumer by 2300BC and assmilating the Amorites of Syria.Yemen remains the only region in the world that exclusively Semitic, meanning that the Yemen didn't have any Non Semitic speaking people through history.Yemeni Semites derived their Musnad script by the 8th century BC, which explains why most Historians will date all th ancient Yemen kingdoms to 8th century BC