Even the Persians, who conquered Anatolia in the 6th century BC and attempted to rule the area by dividing it into satrapies, were unable to cope with constant uprisings and turmoil.
The most reasonable approach is that Antioch was founded by Antiochus I Soter as a military base to control the Galatian attacks, because it was on the border of the regions of Pisidia and Phrygia.
While the Hellenistic Kingdoms (the inheritors of Alexander the Great) were fighting each other and the Galatians, Rome became the most powerful state in Europe and started to follow a policy of expansion to the east.
They cowed the Galatians and according to the treaty, signed in 188 BC in Apamea, after they got the land of Pisidia from Antiochos III, they gave it to their ally, the Kingdom of Pergamon, the dominant power in the region.
When Aristonikos, a usurper who claimed the throne of Pergamon shortly after, was defeated in 129 BC, Rome annexed and populated Western Anatolia with its well-developed, creative culture, lasting for centuries.
To support the struggle against the Homonadesians logistically, the construction of a road called the Via Sebaste, the centre of which was Antioch, was started by the governor of the Province of Galatia, Cornutus Arrutius Aquila.
Rome by means of the Via Sebaste Publius Sulpicius Quirinius brought an end to the Homonadesians problem in 3 BC, relocating survivors in different surrounding locations.
One of the three surviving copies of the Res Gestae Divi Augusti, the famous inscription recording the noble deeds of the Emperor Augustus, was found in front of the Augusteum in Antioch.
His notes after his second journey in 1833 were published the following year in London under the title Discoveries in Asia Minor: including a description of the ruins of several ancient cities and especially Antioch of Pisidia.
He was followed at different periods by noted explorers of the 19th century such as Tchihatcheff, Laborde, Ritter, Richter, but none of them have the power of Arundell's detailed study, until Ramsay.
Using their discoveries and drawing from earlier studies, especially those of the University of Michigan in 1924, they subsequently brought together all the available information about the city, supported with new finds, in a book entitled "Pisidian Antioch" (1998).
The remains of the 12 steps up to the monumental Propylon take one to the most impressive architectural structure which has survived from the earlier periods of Antioch: the Imperial Sanctuary-Augusteum.
Robinson jumped to the conclusion that this referred to Caius Julius Asper who was proconsul of the Province of Asia in AD 212 and for many years this was taken as the date of construction of the gate.
"Caius Julius Asper Pansinianus, mayor for the fifth time (or for five years), military tribune of the first legion, prefect of the foreign cavalry composed of soldiers from ... (here a stone is missing) constructed and ornamented (this gate) from his own money."
The main gate in Antioch decorated with nikes[check spelling], weapons, armour, bucrania and garlands is a perfect example of this tradition.
The architectural plan of the shops behind the porticos on both sides of the large street-square and the connection between square and street are evidence that the whole complex up to the Propylon can be named as the Tiberia Platea.
The 1924 finds: inscriptions, altars, drinking cups, eating or preserving pottery, several kitchen tools and hundreds of coins show that the shops were like little restaurants and bars.
A short wander amongst the older houses of Yalvaç will reveal many ornamental pieces from the Augusteum, Tiberia Platea, Propylon and other important buildings of Antioch.
From the remains of an inscription reading ...I ANTONINI AUG. on a cornice block which can still be seen at the site, one learns that the tholos belongs to the period of Marcus Aurelius Antoninus (Caracalla) who became Augustus in 198 and died in 217.
The Propylon was built to honour Augustus who, as Octavian, had won the sea-battle of Actium against Marcus Antonius in 31 BC and thus became the single power of the Roman world.
The temple that was constructed at the highest point of the city by cutting away the rock has on first sight a stunning effect on the visitor with its ornamental and architectural richness.
The excavations in the nympheum only reveal the foundations and it is difficult to interpret the ornaments of the facade from only a few fine marble remains, but no doubt these were similar to those in other Roman cities.
The height of nympheum should therefore be at least 9 m to give water to the higher points of city like the Platea, and Owens has suggested that part of the supply was a sealed pressurised tube.
The mosaic which was unearthed by Robinson's team is covered with c. 30 cm of earth today, and 1924 photographs show that it was of geometrical floral motives in rectangular frames.
In the central nave at the beginning of the apse where there should be an altar a mosaic inscription was found giving the name of Bishop Optimus who represented Antioch at the Council of Constantinople in 381.
On temenos walls especially on the south –southwest side that looks to Antioch they discovered many inscriptions on votive steles dedicated to Men begging help, health, protection; telling sins, dreams, wishing forgiving and giving thanks, shortly shared lives with the Patrios Theos.
The artifacts that were found in the American excavations were at first kept in the High School, but as the natives started to bring many different objects there, it became necessary to build a museum in Yalvaç.
Objects of daily use, such as jars, jewellery, perfume bottles, terracotta and bronze figurines together with marble statuettes, votive steles from the Men Sanctuary, and early examples of Christian crosses are on display forming a rich, concentrated collection.
An English explorer named Mitchell Ramsay drew a link to the workers class ancient ionian settlers in the region to the village of Manarga in the vicinity of Yalvaç.
In the village of Oekuenes, which is situated on top of a hill, there is an old sand road leading towards Yalvaç, and thus may have been used in antiquity to go to the ancient city of Antiochia in Pisidia.