fertile crescent

The Fertile Crescent ( ar, الهلال الخصيب) is a crescent-shaped region in the Middle East, spanning modern-day Iraq, Syria, Lebanon, Israel, Palestine and Jordan, together with the northern region of Kuwait, southeastern region of Turkey and the western portion of Iran. Some authors also include Cyprus and Northern Egypt.

The Fertile Crescent is believed to be the very first region where settled farming emerged as people started the process of clearance and modification of natural vegetation to grow newly domesticated plants as crops. Early human civilizations such as Sumer in Mesopotamia flourished as a result. Technological advances in the region include the development of agriculture and the use of irrigation, of writing, the wheel, and glass, most emerging first in Mesopotamia.

Terminology

The term "Fertile Crescent" was popularized by archaeologist James Henry Breasted in ''Outlines of European History'' (1914) and ''Ancient Times, A History of the Early World'' (1916). He wrote:

There no single term for this region in antiquity. At the time that Breasted was writing, it roughly corresponded with the territories of the Ottoman Empire ceded to Britain and France in the Sykes–Picot Agreement. Historian Thomas Scheffler has noted that Breasted was following a trend in Western geography to "overwrite the classical geographical distinctions between continents, countries and landscapes with large, abstract spaces", drawing parallels with the work of Halford Mackinder, who conceptualised Eurasia as a 'pivot area' surrounded by an 'inner crescent', Alfred Thayer Mahan's Middle East, and Friedrich Naumann's ''Mitteleuropa''.

In current usage, the Fertile Crescent includes Israel, Palestine, Iraq, Syria, Lebanon, Egypt, and Jordan, as well as the surrounding portions of Turkey and Iran. In addition to the Tigris and Euphrates, riverwater sources include the Jordan River. The inner boundary is delimited by the dry climate of the Syrian Desert to the south. Around the outer boundary are the Anatolian and Armenian highlands to the north, the Sahara Desert to the west, Sudan to the south, and the Iranian plateau to the east.

Biodiversity and climate

As crucial as rivers and marshlands were to the rise of civilization in the Fertile Crescent, they were not the only factor. The area is geographically important as the "bridge" between North Africa and Eurasia, which has allowed it to retain a greater amount of biodiversity than either Europe or North Africa, where climate changes during the Ice Age led to repeated extinction events when ecosystems became squeezed against the waters of the Mediterranean Sea. The Saharan pump theory posits that this Middle Eastern land bridge was extremely important to the modern distribution of Old World flora and fauna, including the spread of humanity.

The area has borne the brunt of the tectonic divergence between the African and Arabian plates and the converging Arabian and Eurasian plates, which has made the region a very diverse zone of high snow-covered mountains.

The Fertile Crescent had many diverse climates, and major climatic changes encouraged the evolution of many "r" type annual plants, which produce more edible seeds than "K" type perennial plants. The region's dramatic variety in elevation gave rise to many species of edible plants for early experiments in cultivation. Most importantly, the Fertile Crescent was home to the eight Neolithic founder crops important in early agriculture (i.e., wild progenitors to emmer wheat, einkorn, barley, flax, chick pea, pea, lentil, bitter vetch), and four of the five most important species of domesticated animals— cows, goats, sheep, and pigs; the fifth species, the horse, lived nearby. The Fertile Crescent flora comprises a high percentage of plants that can self-pollinate, but may also be cross-pollinated. These plants, called " selfers", were one of the geographical advantages of the area because they did not depend on other plants for reproduction.

History

As well as possessing many sites with the skeletal and cultural remains of both pre-modern and early modern humans (e.g., at Tabun and Es Skhul caves in Israel), later Pleistocene hunter-gatherers, and Epipalaeolithic semi-sedentary hunter-gatherers (the Natufians); the Fertile Crescent is most famous for its sites related to the origins of agriculture. The western zone around the Jordan and upper Euphrates rivers gave rise to the first known Neolithic farming settlements (referred to as Pre-Pottery Neolithic A (PPNA)), which date to around 9,000 BCE and includes very ancient sites such as Göbekli Tepe, Chogha Golan, and Jericho (Tell es-Sultan).

This region, alongside Mesopotamia (Greek for "between rivers", between the rivers Tigris and Euphrates, lies in the east of the Fertile Crescent), also saw the emergence of early complex societies during the succeeding Bronze Age. There is also early evidence from the region for writing and the formation of hierarchical state level societies. This has earned the region the nickname "The cradle of civilization".

It is in this region where the first libraries appeared about 4,500 years ago. The oldest known libraries are found in Nippur (in Sumer) and Ebla (in Syria), both from c. 2500 BCE.

Both the Tigris and Euphrates start in the Taurus Mountains of what is modern-day Turkey. Farmers in southern Mesopotamia ha