Dereaze, located in the city of Ibri, is the oldest known human settlement in the area, dating back as many as 8,000 years to the late Stone Age. Archaeological remains have been discovered here from the Stone Age and the Bronze Age; findings have included stone implements, animal bones, shells and fire hearths, with the later dating back to 7615 BC as the oldest signs of human settlement in the area. Other discoveries include hand-molded pottery bearing distinguishing pre-Bronze Age marks, heavy flint implements, pointed tools and scrapers.
On a mountain rock-face in the same district, animal drawings have been discovered. Similar drawings have also been found in the Wadi Sahtan and Wadi Bani Kharus areas of Rustaq, consisting of human figures carrying weapons and being confronted by wild animals. Siwan in Haima is another Stone Age location and some of the archaeologists have found arrowheads, knives, chisels and circular stones which may have been used to hunt animals.
Sumerian tablets refer to a country called Magan or Makan, a name believed to refer to Oman's ancient copper mines. Mazoon, another name used for the region, is derived from the word muzn, which means heavy clouds which carry abundant water. The present-day name of the country, Oman, is believed to originate from the Arab tribes who migrated to its territory from the Uman region of Yemen; many such tribes settled in Oman, making a living by fishing, herding or stock breeding, and many present day Omani families are able to trace their ancestral roots to other parts of Arabia.
From the 6th century BC to the arrival of Islam in the 7th century AD, Oman was controlled and/or influenced by three Persian dynasties, the Achaemenids, Parthians and Sassanids. In the 6th century BC, the Achaemenids exerted a strong degree of control over the Omani peninsula, most likely ruling from a coastal center such as Sohar. By about 250 BC, the Parthian dynasty had brought