Umm Al Nar culture

The key site on the island, today known as Sas Al Nakhl, is protected, but its location between a refinery and a sensitive military area means public access is currently prohibited. ==Attributes==

A key indicator of the Umm Al Nar culture is circular tombs typically characterized by well fitted ashlar in the outer wall and multiple human remains within. The tombs are frequently associated with towers, many of which were built around water sources. ==Excavations==

|alt= in Dubai. The first archaeological excavations in Abu Dhabi began at Umm Al Nar in 1959, twelve years before the foundation of the United Arab Emirates. Seven tombs from a total of fifty and three areas at the ruins of the ancient settlement were examined by a Danish Archaeological Expedition under Danish archaeologist PV Glob. During its first visit the expedition identified a few exposed shaped stones fitted together at some of the stone mounds. The following year (February 1959) the first excavations started at one of the mounds on the plateau, now called Tomb I. Two more seasons (1960 and 1961) involved digging more tombs, while the last three seasons (1962/1963, 1964 and 1965) were allocated to examining the settlement. The Danish excavations on Umm Al Nar halted in 1965 but were resumed in 1975 by an archaeological team from Iraq. During the Iraqi excavations which lasted one season, five tombs were excavated and a small section of the village was examined. Between 1970 and 1972 an Iraqi restoration team headed by Shah Al Siwani, former member of the Antiquities Director in Baghdad, restored and/or reconstructed the Danish excavated tombs. At Al Sufouh Archaeological Site in Dubai, archaeological excavation between 1994 and 1995 revealed an Umm Al Nar type circular tomb dating between 2500 and 2000 BCE. An Umm Al Nar tomb forms the centrepiece of the Mleiha Archaeological Centre in Sharjah. Dilmun Burial Mounds in Bahrain also feature Umm Al Nar Culture remains. At Tell Abraq, settlements associated with the start of the Umm Al Nar Culture began c. 2500 BCE. ==Occupation phases==

|alt= The Ubaid period (5000-3800 BCE) followed the Neolithic Arabian bifacial era. Pottery vessels of the period already show contact with Mesopotamia. These fortifications typically are built around a well, presumably to protect important water resources. During this period, the first Sumerian mentions of a land of Magan (Akkadian Makkan) are made, as well as references to 'the Lords of Magan'. Sumerian sources also point to 'Tilmun' (accepted today as modern Bahrain) and Meluhha (thought to refer to the Indus Valley). Archaeological finds dating from this time show trade not only with the Indus Valley and Sumer, but also with Iran and Bactria. They have also revealed what is thought to be the oldest case on record of poliomyelitis, with the distinctive signs of the disease found in the skeleton of a woman from Tell Abraq. The archaeological record of the Hafit and Umm Al Nar periods show the area of southeastern Arabia formed a locus for a bipolar field of trade between Mesopotamia and the Indus where the people of Magan were intermediaries, suppliers and consumers, but also political agents acting in their own interests. In support of this cultural interaction, a pair of copper-alloy cymbals dating to the late third millennium BCE was discovered at the Dahwa 7 archaeological site in northern Oman. Found within a small ritual building and carefully deposited, these instruments bear striking similarities to examples from the Indus Valley civilization, indicating the transmission of musical practices across regions. The trade with Mesopotamia collapsed in and around 2000 BCE, with a series of disasters including the Aryan invasion of the Indus Valley, the fall of the Mesopotamian city of Ur to Elam in 2000 BCE and the decline of the Indus Valley Harappan Culture in 1800 BCE. The abandonment of the port of Umm Al Nar took place at around this time. There is some dispute as to the exact cause of the end of the trading era of the Umm Al Nar period and the subsequent, and inwardly focused, domestication of the Wadi Suq period (2000-1300 BCE), and modern consensus is that the transition from the Umm Al Nar to the Wadi Suq period was evolutionary and not revolutionary. The Wadi Suq culture saw more inland settlement, increasingly sophisticated metallurgy and the domestication of the camel. The poorly represented last phase of the Bronze Age (1600-1300 BCE) has only been vaguely identified in a small number of settlements. This phase of the Bronze Age was followed by a boom when the underground irrigation system (the Falaj ()) or Qanat was introduced during the Iron Age (1300-300 BCE) by local communities. ==See also==