BRIEF HISTORY OF MESOPOTAMIA

TNDL: “THIS BRIEF HISTORY OF MESOPOTAMIA. LOOK INTO THE GEOGRAPHY AND HISTORY, Geography.”

Main article: Geography of Mesopotamia
Known world of the Mesopotamian, Babylonian, and Assyrian cultures from documentary sources
Mesopotamia encompasses the land between the Euphrates and Tigris rivers, both of which have their headwaters in the Taurus Mountains. Both rivers are fed by numerous tributaries, and the entire river system drains a vast mountainous region. Overland routes in Mesopotamia usually follow the Euphrates because the banks of the Tigris are frequently steep and difficult. The climate of the region is semi-arid with a vast desert expanse in the north which gives way to a 15,000-square-kilometre (5,800 sq mi) region of marshes, lagoons, mud flats, and reed banks in the south. In the extreme south, the Euphrates and the Tigris unite and empty into the Persian Gulf.
The arid environment which ranges from the northern areas of rain-fed agriculture to the south where irrigation of agriculture is essential if a surplus energy returned on energy invested (EROEI) is to be obtained. This irrigation is aided by a high water table and by melting snows from the high peaks of the northern Zagros Mountains and from the Armenian Highlands, the source of the Tigris and Euphrates Rivers that give the region its name. The usefulness of irrigation depends upon the ability to mobilize sufficient labor for the construction and maintenance of canals, and this, from the earliest period, has assisted the development of urban settlements and centralized systems of political authority.
Agriculture throughout the region has been supplemented by nomadic pastoralism, where tent-dwelling nomads herded sheep and goats (and later camels) from the river pastures in the dry summer months, out into seasonal grazing lands on the desert fringe in the wet winter season. The area is generally lacking in building stone, precious metals and timber, and so historically has relied upon long-distance trade of agricultural products to secure these items from outlying areas. In the marshlands to the south of the area, a complex water-borne fishing culture has existed since prehistoric times, and has added to the cultural mix.
Periodic breakdowns in the cultural system have occurred for a number of reasons. The demands for labor has from time to time led to population increases that push the limits of the ecological carrying capacity, and should a period of climatic instability ensue, collapsing central government and declining populations can occur. Alternatively, military vulnerability to invasion from marginal hill tribes or nomadic pastoralists has led to periods of trade collapse and neglect of irrigation systems. Equally, centripetal tendencies amongst city states has meant that central authority over the whole region, when imposed, has tended to be ephemeral, and localism has fragmented power into tribal or smaller regional units.[11] These trends have continued to the present day in Iraq.
History
One of 18 Statues of Gudea, a ruler around 2090 BC
Main article: History of Mesopotamia
Further information: History of Iraq, History of the Middle East, and Chronology of the ancient Near East
The pre-history of the Ancient Near East begins in the Lower Paleolithic period. Therein, writing emerged with a pictographic script in the Uruk IV period (c. 4th millennium BC), and the documented record of actual historical events — and the ancient history of lower Mesopotamia — commenced in the mid-third millennium BC with cuneiform records of early dynastic kings. This entire prehistory ends with either the arrival of the Achaemenid Empire in the late 6th century BC, or with the Muslim conquest and the establishment of the Caliphate in the late 7th century AD, from which point the region came to be known as Iraq. In the long span of this period, Mesopotamia housed some of the world's most ancient highly developed and socially complex states.
The region was one of the four riverine civilizations where writing was invented, along with the Nile valley in Egypt, the Indus Valley Civilization in the Indian subcontinent, and the Yellow River in China. Mesopotamia housed historically important cities such as Uruk, Nippur, Nineveh, Assur and Babylon, as well as major territorial states such as the city of Eridu, the Akkadian kingdoms, the Third Dynasty of Ur, and the various Assyrian empires. Some of the important historical Mesopotamian leaders were Ur-Nammu (king of Ur), Sargon of Akkad (who established the Akkadian Empire), Hammurabi (who established the Old Babylonian state), Ashur-uballit II and Tiglath-Pileser I (who established the Assyrian Empire).
Scientists analysed DNA from the 8,000-year-old remains of early farmers found at an ancient graveyard in Germany. They compared the genetic signatures to those of modern populations and found similarities with the DNA of people living in today's Turkey and Iraq.[12]
Periodization
Pre- and protohistory
Pre-Pottery Neolithic A (10,000–8700 BC)
Pre-Pottery Neolithic B (8700–6800)
Hassuna (~6000 BC–? BC), Samarra (~5700–4900 BC) and Halaf cultures (~6000–5300 BC) cultures
Ubaid period (~5900–4400 BC)
Uruk period (~4400–3100 BC)
Jemdet Nasr period (~3100–2900 BC)[13]
Early Bronze Age
Early Dynastic period (~2900–2350 BC)
Akkadian Empire (~2350–2100 BC)
Third Dynasty of Ur (2112–2004 BC)
Early Assyrian kingdom (24th to 18th century BC)
Middle Bronze Age
Early Babylonia (19th to 18th century BC)
First Babylonian Dynasty (18th to 17th century BC)
Minoan eruption (c. 1620 BC)
Late Bronze Age
Old Assyrian period (16th to 11th century BC)
Middle Assyrian period (c. 1365–1076 BC)
Kassites in Babylon, (c. 1595–1155 BC)
Late Bronze Age collapse (12th to 11th century BC)
Iron Age