section_path: General
section_name: General
paragraph_text: General
  
  Geographically, the Middle East can be thought of as Western Asia with the addition of Egypt (which is the non- Maghreb region of Northern Africa) and with the exclusion of the Caucasus. The Middle East was the first to experience a Neolithic Revolution (c. the 10th millennium BCE), as well as the first to enter the Bronze Age (c. 3300–1200 BC) and Iron Age (c. 1200–500 BC).
  
  Historically human populations have tended to settle around bodies of water, which is reflected in modern population density patterns. Irrigation systems were extremely important for the agricultural Middle East: for Egypt that of the lower Nile River, and for Mesopotamia that of the Tigris and Euphrates rivers. Levantine agriculture depended on precipitation rather than on the river-based irrigation of Egypt and Mesopotamia, resulting in preference for different crops. Since travel was faster and easier by sea, civilizations along the Mediterranean, such as Phoenicia and later Greece, participated in intense trade. Similarly, Ancient Yemen, being much more conducive to agriculture than the rest of the Arabian Peninsula, sea traded heavily with the Horn of Africa, some of which it lingually Semitized. The Adnanite Arabs, inhabiting the drier desert areas of the Middle East, were all nomadic pastoralists before some began settling in city states, with the geo-linguistic distribution today being divided between Persian Gulf, the Najd and the Hejaz in the Peninsula, as well as the Bedouin areas beyond the Peninsula.
  
  Since ancient times the Middle East has had several lingua franca: Akkadian (c. 14th–8th century BC), Hebrew (c. 5th century BC – 2nd century AD), Aramaic (c. 8th century BC – 8th century AD), Greek (c. 4th century BC – 8th century AD), and Arabic (c. 8th century AD – present). Familiarity with English is not uncommon among the middle and upper classes. Arabic is not commonly spoken in Turkey, Iran, and Israel, and some varieties of Arabic lack mutual intelligibility, thus qualifying as distinct languages by this linguistic criterion.
  
  The Middle East was the birthplace of the Abrahamic, Gnostic, and most Iranian religions. Initially the ancient inhabitants of the region followed various ethnic religions, but most of those began to be gradually replaced at first by Christianity (even before the 313 AD Edict of Milan) and finally by Islam (after the spread of the Muslim conquests beyond the Arabian Peninsula in 634 AD). To this day, however, the Middle East has, in particular, some sizable, ethnically distinct Christian minority groups, as well as Jews, concentrated in Israel, and followers of Iranian religions, such as Yazdânism and Zoroastrianism. Some of the smaller ethnoreligious minorities include the Shabak people, the Mandaeans and the Samaritans. It is somewhat controversial whether the Druze religion is a distinct religion in its own right or merely a part of the Ismailist branch of Shia Islam.