Somalia also well established, with many local "jama'a" ("zawiya") or congregations of the various "tariiqa" or Sufi orders. The constitution of Somalia likewise defines Islam as the state religion of the Federal Republic of Somalia, and Islamic sharia as the basic source for national legislation. It also stipulates that no law that is inconsistent with the basic tenets of Shari'a can be enacted. Islam entered the region very early on, as a group of persecuted Muslims had sought refuge across the Red Sea in the Horn of Africa at the urging of the Islamic prophet Muhammad. Islam may thus have been
Slavery in Somalia had previously been absent from. The Bantus inhabiting Somalia are descended from Bantu groups that had settled in Southeast Africa after the initial expansion from Nigeria/Cameroon, and whose members were later captured and sold into the Arab slave trade. Bantus are ethnically, physically, and culturally distinct from Somalis, and they have remained marginalized ever since their arrival in Somalia. All in all, the number of Bantu inhabitants in Somalia before the civil war is thought to have been about 80,000 (1970 estimate), with most concentrated between the Juba and Shabelle rivers in the south. However, recent estimates place the figure