Djakhet

Djakhet was an ancient civilization of southwestern Atosan, concentrated on the Atosan River in present-day Aidis and Yeros. Although proto-Djakhetian cultures existed in the region for thousands of years, the Djakhetian civilization proper was not consolidated until approximately c. 3000 BAY with the establishment of several rival city-states and kingdoms along the Atosan river valley. The entire region was not unified until c. 2000 BAY under Neshi I. Afterwards, the history of the ancient Djakhet is divided into a series of stable Kingdoms, separated by periods of relative instability known as Intermediate Periods: the Old Kingdom, the Middle Kingdom, and the New Kingdom. After the collapse of the New Kingdom c. 300 BAY, Djakhet sharply declined due to the Bronze Age collapse, Itholiani and Proto-Athlian [link] invasions, internal sqabbles, as well as changing global climate patterns. By c. 1500 BAY, the remnants of Djakhet had long vanished and most of the Post-Djakhetian survivors had fled north or west, spreading the Atosanic languages along with them.

The success of ancient Djakhetian civilization came partly from its ability to adapt to the conditions of the Atosan River Valley. The predictable flooding and controlled irrigation of the fertile valley produced surplus crops, which fueled social development and culture. With resources to spare, the Djakhetian administration sponsored mineral exploitation of the valley and surrounding desert regions, the early development of an independent writing system, the organization of collective construction and agricultural projects, trade with surrounding regions, and a military intended to defeat foreign enemies and assert Djakhetian dominance. Motivating and organizing these activities was a bureaucracy of elite scribes, religious leaders, and administrators under the control of an aristocracy who ensured the cooperation and unity of the Djakhetian people. Yet even despite such unity, the various regions of Djakhet still kept their distinct pre-historical cultures and identities, giving rise to the tribes of Djakhetian legend and history, divisions of which would remain influential the history of not only Djakhet but many of its daughter cultures.

The Djakhetian civilization has left an impressive legacy in the billions of peoples who live in the Atosanic nations or speak the Atosanic languages. The bond between the so-called "Atosanic peoples" is most clearly manifested today through the LADN, which seeks to foster cultural and political ties between these countries that have and/or continue to act as some of the world's most dominant powers.

History
Main article: History of Djakhet 

Predynastic Period (? - c. 2000 BAY)
Predynastic Djakhet is believed to have been somewhat more fertile than modern-day Djakhet. Parts of central Djakhet were covered in savanna (as opposed to merely southern Djakhet), for instance, and Neckers purportedly lived as far north as the Rani River. The practice of agriculture seems to have originated around 5000 BAY, after the archaeologically deficient Agonosic Era, although the cause and even exact nature of Arteran's Agricultural Revolution remain one of history's great mysteries.