Shirazi era

[1] Population genetics has identified the maternal heritage of the present and pre-modern population is principally of Sub-Saharan lineages, primarily Bantu and Pastoral Neolithic, while the majority of the male heritage, in the coastal settlements, is of Asian origin, with Y-DNA haplogroups common to West Asia: J2, G2, and R1a most frequent in the samples, partially supporting the mythology.

These Africans migrants seem to have developed a concept of Shirazi origin as they moved further southwards, near Malindi and Mombasa, along the Mrima coast.

In addition, because most Muslim societies are patrilineal, one can claim distant identities through paternal lines regardless of the composition of the majority of one's ancestry.

The so-called Shirazi tradition represents the arrival of Islam in these eras, one reason it has proven so long lasting.

[5] Two of the most important archeological sites are that of Kaole, north of Dar es Salaam, and Kilwa, where the remains of some of the oldest mosques in Southeast Africa can be found.