Fergana valley

The Fergana Valley (; ; ) in Central Asia lies mainly in eastern Uzbekistan, but also extends into southern Kyrgyzstan and northern Tajikistan.

Divided into three republics of the former Soviet Union, the valley is ethnically diverse and in the early 21st century was the scene of conflict. A large triangular valley in what is an often dry part of Central Asia, the Fergana owes its fertility to two rivers, the Naryn and the Kara Darya, which run from the east, joining near Namangan, forming the Syr Darya river. The valley's history stretches back over 2,300 years, when Alexander the Great founded Alexandria Eschate at its southwestern end.

Chinese chroniclers date its towns to more than 2,100 years ago, as a path between Greek, Chinese, Bactrian and Parthian civilisations. It was home to Babur, founder of the Mughal Dynasty, tying the region to modern Afghanistan and South Asia. The Russian Empire conquered the valley at the end of the 19th century, and it became part of the Soviet Union in the 1920s. Its three Soviet republics gained independence in 1991. The area largely remains Muslim, populated by ethnic Uzbek, Tajik and Kyrgyz people, often intermixed and not matching modern borders. Historically there have also been substantial numbers of Russian, Kashgarian, Kipchak, Bukharan Jewish and Romani minorities.

Mass cotton cultivation, introduced by the Soviets, remains central to the economy, along with a wide range of grains, fruits and vegetables. There is a long history of stock breeding, leatherwork and a growing mining sector, including deposits of coal, iron, sulfur, gypsum, rock-salt, naphtha and some small known oil reserves.

Name

It is alternatively spelled as Farghana or Ferghana. In other regional languages, it is

* uz, Farg‘ona vodiysi, Фарғона водийси, فەرغانە ۉادىيسى
* ky, Фергана өрөөнү, Ferghana öröönü, فەرعانا ۅرۅۅنۉ,
* tg, Водии Фарғона, Vodiyi Farghona
* russian: Ферганская долина, Ferganskaya dolina
* fa, وادی فرغانه, Vâdiye Ferġâna
* ur, , Wadiye Firġana
*
** Xiao'erjing:
** dng, Фыйрганна Пенды

Geography and geology

The Fergana Valley is an intermountain depression in Central Asia, between the mountain systems of the Tien Shan in the north and the Alay in the south. The valley is approximately long and up to wide, forming an area covering . Its position makes it a separate geographic zone. The valley owes its fertility to two rivers, the Naryn and the Kara Darya, which unite in the valley, near Namangan, to form the Syr Darya. Numerous other tributaries of these rivers exist in the valley including the Sokh River. The streams, and their numerous mountain effluents, not only supply water for irrigation, but also bring down vast quantities of sand, which is deposited alongside their courses, more especially alongside the Syr Darya where it cuts its way through the Khujand- Ajar ridge and forms the valley. This expanse of quicksand, covering an area of , under the influence of south-west winds, encroaches upon the agricultural districts.

The central part of the geological depression that forms the valley is characterized by block subsidence, originally to depths estimated at , largely filled with sediments that range in age as far back as the Permian-Triassic boundary. Some of the sediments are marine carbonates and clays. The faults are upthrusts and overthrusts. Anticlines associated with these faults form traps for petroleum and natural gas, which has been discovered in 52 small fields.

Climate

The climate of this valley is dry and continental, being mostly a cool arid climate ( Köppen ''BWk'') or a cool semi-arid climate (''BSk'') in less shielded areas. In March the temperature reaches , and then rapidly rises to in June, July and August. During the five months following April precipitation is rare, but increases in frequency starting in October. Snow and frost, down to , occurs in December and January.

History

Fergana, on the route to Tarim Basin from the west, remained at the boundaries of a number of classical era empires.

Achaemenid Empire

As early as 500 BC, the western sections of the Fergana Valley formed part of the Sogdiana region, which was ruled from further west and owed fealty to the Achaemenid Empire at the time of Darius the Great. The independent and warlike Sogdiana formed a border region insulating the Achaemenid Persians from the nomadic Scythians to the north and east."The province of Sogdia was to Asia what Macedonia was to Greece: a buffer between a brittle civilization and the restless barbarians beyond, whether the Scyths of Alexander's day and later or the White Huns, Turks and Mongols who eventually poured south to wreck the thin veneer of Iranian society" (Robin Lane Fox, ''Alexander the Great'' (1973) 1986:301). It was forcibly settled by exiled Greeks from the Anatolian coast, who had rebelled or otherwise given Persia trouble. Eventually, it had a significant Greek community. The capital of the region was known to the Greeks as Cyropolis, named after Cyrus the Great.

The Sogdian Rock or Rock of Ariamazes, a fortress in Sogdiana, was captured in 327 BC by the forces of Alexander the Great; after an extended campaign putting down Sogdian resistance and founding military outposts manned by his Greek veterans, Alexander united Sogdiana with Bactria into one satrapy.

Hellenistic settlement

In 329 BC, Alexander the Great founded the city of Alexandria Eschate "The Furthest", probably renaming Cyropolis. This was in the southwestern part of the Fergana Valley, on the southern bank of the river Syr Darya (ancient Jaxartes), at the location of the modern city of Khujand, in the state of Tajikistan. Supplemented by Alexander's veterans, it was later ruled by Seleucids before secession of Bactria.

After 250 BC, the city probably remained in contact with the Greco-Bactrian Kingdom centered on Bactria, especially when the Greco-Bactrian king Euthydemus extended his control to Sogdiana. There are indications that from Alexandria Eschate the Greco-Bactrians may have led expeditions as far as Kashgar and Ürümqi in Chinese Turkestan, leading to the first known contacts between China and the West around 220 BC. Several statuettes and representations of Greek soldiers have been found north of the Tian Shan, on the doorstep to China, and are today on display in the Xinjiang museum at Urumqi (Boardman). Of the Greco-Bactrians, the Greek historian Strabo too writes that:

The Fergana area, called Dayuan