The beginning of our Aegean area civilization dates back to 4000-3000 EC. During this time, in the area, the civilizations of Crete, Mom, Ion and Islands have existed. The Aka's who migrated to Mora brought the civilization of Crete to an end. The Dor's who came to Greece from the north also brought their civilization to an end. In Sari Teksiye's The History of Little Asia, Teas is represented as a city of Karya founded by Cretans running away from Aka's in 2000 EC. In 1190 BC Aka's running away from the Dor's and some Greek tribes migrated to the west Anatolian coasts. The first tribe under the leadership of Atamas landed in Teos. He was heartily welcomed. After this hearty welcome is heard, second big group of people under the command of Apekiis came. The native citizens became a minority; hence Teos was no longer a Karian city but became an Ionian city.

According to the writer of The Great History of World Jak Pirenni, Teos has lived its brightest period in 900 BC which was a period of peace provided by the Assyrians. In this period; Teos, Millet, Priyene, Ephesus, Sisam, Colophon, Kalaomen and Eritrea gathered together and formed an Ionian federation. This federation became famous worldwide in the areas of metal processing, overseas trading, business and finance. According to the history ofHeredot, in 546 BC when Persians conquered Lydia; lonians were in the defense. Teos took part in the alliance by sending 17 ships and soldiers. (Considering the fact that the Focaians could contribute only by sending 3 ships, the power of Teos can better be understood).

After the Persian wars, Teas joined the Anik-Delos union together with Athens. In the second Peloponnesian wars, on the disaster of Athens, with the intermediation of Spartans' Zoru and Tsaferin's (Seferihisar) Takes, accepted the reign of Spartans and kept silent to the destruction of the walls. These city walls were reconstructed together with the temples with the help of Athens in the 4th century. Most of the remaining ruins belong to that century.

Ahmet Ersoy who has researched Teos history and claimed that in 2 BC. In the war between the Syrian King of Selefkos, Atonyiis, and Romans; Romans tried to prevent Teos from helping Selefkos. In the meantime Roman's helped and prevented a probable defeat. After the Roman conquest of Anatolia, Teos was under the rule of Pergamon Empire for a while. Teos was one of the first cities to accept Christianity. During this period 5 saints lived in Teos and it became an important religious center. In 17th century BC during the reign of the Roman Empire Tiberius, big earthquakes took place in the Aegean region. These earthquakes won over. The cities collapsed and citizens deserted this region. Thus, Teos became a ruin.

The citizens of Teos belonged to the Bacchus sect. Cevat Sakir in his work named Koca Yurd, wrote that; during the Dionysian feasts, they had decorated a goat as a symbol and marched it through the streets of the city and added that they had made sacrifices in the temple of Bacchus. Teos was the cradle of theatre, the artists had formed the Dionysian society and Libidos was founded as a place for the members of this society for camping and preparation.

Teas is one of the 12 Ionian cities. They were specialized in the areas of seamanship, trade, winery, olive oil producing and textile. Teas' drinking vessels were famous even in the archaic ages. Teos which became rich by trade and maritime was first conquered by Lydian's and than by Persians under the command of Mardonius in 545 EC. After these developments Teosians moved their colonies to Abdera. During the Persian conquest, geometrician and philosopher Tales proposed to establish this place as a center for the confederation of Ions against Persians.

Anekreon, the famous lyric poet, lived in this city in the sixth century. During the Persian conquest he had lived in the palaces of Athena and Sisam and had later returned to Teos.

In the 5th century, Teos became the home of sophist Protagoras, the tutor of the first nuclear theorist Demokritos and Petricles. The Anatolian Ion architecture is influenced by Pytheus and Hermoneges and these also influenced at first the Roman and then the Renaissance architecture. In the temple Dionysus was worshipped and was also known as Setaminios. (Heralding the coming of spring). Dionysus is represented as not only the god of theatre and wine but also the god of fertility. In the temple there is an 'S' shaped statue of Dionysus holding Tyhros in one hand and Kantharos in the other.

The limestone used in building the temple was brought from the Karagol stone quarry. This gray limestone was exported even to Rome starting from 6 BC. Sigacik citadel cannot be placed in Piri Reis' map. Probably, in accordance with his advice, during Siileyman the Magnificent's expedition to Rhodes, Sigla Citadel was built by using stones from Teos. After the Roman em, during the Byzantium reign. Bishop of Teos joined the Christian council connected to the Grecian Bishop of-Ephesus.

According to historical sources, the marble road which went through Teos was connected to Urla Pier which was then called "Kilizyum" and the island where the State Hospital is located on one end, and to Cesme's Ildir Village on the other. Another connection was from Libidos to Ephesus and to Lydia's capital Sard. Thus a connection with Ninova was set.

Many archeological Teos foundings belonging to 2nd BC were returned to Izmir Archeological Museum from Paris Museum. Other historical foundings like ceramics, relieves and statues belonging to later periods of Rome and Byzantium were found and examined, by French Professors Robert and Meboron. Some of these were smuggled out of  Turkey, some are still in İzmir Archeology Museum.