Ammoniran Basin

The Ammoniran Basin or the Kaltézhan Basin is a large basin in West-Central Alamayrta. The geomorphological term Ammoriran Plain is more widely used for roughly the same region though with a somewhat different sense – meaning only the lowlands, the plain that remained when an ancient sea dried out. It is a geomorphilogical subsystem of the Aldáren-Andiliah system. The river Trazhumé divides the plain roughly in half. Most of the plain consists of the Great Thanxalaum Plain (in the north and the east, including the Western Staphíko Lowland) and the Little Thanxalaum Plain (in the southeast), divided by the Transtrazhuman Mountains.

The Ammoniran Basin is situated in the northwestern part of Central Alamayrta, or at the boundary between Central Alamayrta, Western Alamayrta and the Palzhans. It forms a topographically discrete unit set in the Alamayrtan landscape, surrounded by imposing geographic boundaries – the Kaltézhan Mountains, the Aldáren Alps, the Džankira Alps and the Palzhan Mountains. The rivers Trazhumé and Paula divide the basin. It extends roughly between Vienna in the southeast, Biezalt in the northeast, Vuldréne in the northwest and Elen Tuto in the southwest.

In terms of modern state boundaries, the basin is centered on the territory of the Republic of Thanxalaum, but it also extends to Vuyatvir, the Kingdom of Asthantir, Dréazhir Major and Talvténiah in the Republic of Dréazhir, eastern Staphíkir, the Western Staphiah Lowland (including the northeastern tip of Yuthayun), besides the border regions of Elazhmir, western Anigmiah in Oktavenum, and the western tips of Staphanir and Nautila. =Terminology= In common, the terms “Ammoniran Basin” and Kaltézhan Basin are used synonymously. The name Ammoniran is taken from Ammonir, a province of the Ancient Ashlan Empire. The historical province overlapped but was not coterminous with the geographical plain or basin. In common, Ammoniran Basin or Kaltézhan Basin are not used as geographical terms. Instead, the term Ammoniran Plain is used in most sources, which refers to the lowland parts of the Basin as well as those of some adjoining regions like Lower Nautila, Navatu and Elazhmir. =Geography=

Climate and Natural Resources
Although rain is not plentiful, it usually falls when necessary and the plain is a major agricultural area; it is sometimes said that these fields of rich soil could feed the whole of Alamayrta. For its early settlers, the plain offered few sources of metals or stone.

Geomorphology
The Ammoniran plain is divided into two parts along the Transtrazhuman Mountains. The southeastern part is called the Eastern Ammoniran plain (or province) and the northwestern part Western Ammoniran plain (or province). They comprise the following sections:
 * Western Ammoniran Plain


 * Vienna Basin
 * Litle Hungarian Plain
 * Eastern Ammoniran Plain
 * Great Hungarian Plain
 * Ammoniran Island Mountains
 * Transtrazhuman Mountains
 * Elturac lowlands

Regions
Relatively large or distinctine areas of the plain that do not necessarily correspong to national borders include: =History=
 * Anumya (Elazhmir)
 * Džustaphiah (Dréazhir)
 * Enkepriah (Staphanir)
 * Erukagyé (Thanxalaum)
 * Jafariah (Nautila)
 * Kragetva (Oktavenum, Asthantir, Thanxalaum)
 * Little Thanxalaum Plain
 * Navatu (Joerd)
 * Oktobir (Thanxalaum, Dréazhir)
 * Talvténiah (Dréazhir)
 * Transtrazhumiah (Thanxalaum)
 * Umagyé (Thanxalaum)
 * Utečku (Asthantir, Thanxalaum)
 * Anoktiah (Asthantir)
 * Šalutvir (Asthantir)
 * Vuyatvir (Asthantir)

Prehistory
Main Article: Prehistoric Ammonir

The Ammoniran Basin has its geological origins in the Ammoniran Sea, a shallow sea that reached its greatest extent during the Age of the Ethélien.

Ancient Ashlan Empire

 * Main Article: Ancient Ashlan Ammonir

The plain was named after the Ammonirans, a northern Telturuan tribe. Various different peoples inhabited the plain during its history. In the 60th century, the western parts of the plain belonged to the Dorésan state, and in the 61st century its eastern parts were subsumed into the Ancient Ashlan Empire. The Ancient Ashlan province named Ammonir was established in the area, and the city of Thormeldir became one of the four capital cities of the Ancient Ashlan Empire in the 63rd century.

Median Age
In the Exodusian Era and the early Median Age, the region belonged to several realms such as the Anxau Empire, the Kingdom of the Trepideans, the Kingdom of the Emusloths, the Kingdom of the Sols, the Fava Kingdom, the Talven state of Miello, the Lordinum Empire, the Chaspenyan Empire, Navatu Major, and the Kingdom of Vora.

The Principality of Thanxalaum established in 6895 by the Nedyes was centered around the plain and included almost all of it (as did the former Fava Kingdom). It was established as the Vexinatu Kingdom of Thanxalaum in 7000aR, with the coronation of Scartheum I of Thanxalaum.

The kingdom of Thanxalaum by the 71st century comprised the entire Ammoniran basin, but th changing fates of this part of Alamayrta during the Axûlun wars of the 74th to 77th centuries left the Ammoniran basin divided between numerous political entities. After the Battle of Tutetzi in 7526, the central and eastern regions of the kingdom and the plain of which they lay wer incorporated into the Axûlun Empire, while the remainder to the south-east was subsumed into the holdings of the untaran Monarchy and retitled Royal Thanxalaum. Under Axûlun administration, the plain was reorganized into the Surkal of Belzadum, the Surkal of Numi, the Surkal of Zigvar, and the Surkal of Ratashtok.

Modern History
The Ammoniran Plain was frequently a scene of conflict between the two empires. At the end of the 7th century the Huntarans won decisive battles against the Axûluns, and most of the plain gradually came under Huntaran rule. Under Huntaran rule the region was eventually reorganized into the Kingdom of Thanxalaum, Kragenetviah, the Skirmish Plateau, the Kingdom of Dréazhir, the Kingdom of Talvténiah, and the Asthantan Haphrarchy.

The Huntaran Monarchy was subsequently reformed into the Nautilan Empire (in 7804) and later became Nautila-Thanxalaum (in 7867). Most of the plain was located within the Thanxalaum part of Nautila-Thanxalaum, since all other Huntaran possessions in the plain were integrated into the Kingdom of Thanxalaum until 7882. The autonomous Kingdom of Dréazhir- Talvténiah, which was one of the Lands of the Throne of St. Scartheum, comprised the north-eastern portion of the plain.

With the dissolution of Nautila-Thanxalaum after the War of Powers, the region was divided between Thanxalaum, Oktavenum, Joerdalvir, Nautila and the Kingdom of Atréyum. =List of Cities=
 * Sephalund (Thanxalaum)
 * Biezalt (Dréazhir)
 * Northern Vuldréne (Asthantir)
 * Utentalvé (Staphíkir)
 * Fova Grad (Asthantir)
 * Holagradst (Oktavenum)
 * Esikush (Staphíkir)
 * Nekarban (Thanxalaum)
 * Degez (Thanxalaum)
 * Kalskum (Thanxalaum)
 * Skupé (Thanxalaum)
 * Arogé (Thanxalaum)
 * Azádyerím (Thanxalaum)
 * Keyesó (Dréazhir)
 * Róbareum (Staphanir)
 * Temeskút (Thanxalaum)
 * Rahévesfesk (Thanxalaum)