Sivaslı, formerly known as Sebaste () is a town in
Uşak Province
Uşak () is a Provinces of Turkey, province in western Turkey. Its adjacent provinces are Manisa Province, Manisa to the west, Denizli Province, Denizli to the south, Afyon Province, Afyon to the east, and Kütahya Province, Kütahya to the north. ...
in the inner Aegean region of Turkey. It is the seat of
Sivaslı District
Sivaslı District is a district of the Uşak Province of Turkey. Its seat is the town of Sivaslı.İlçe Belediyesi Turkey Civil Administration Departments Inventory. Retrieved 22 May 2023. Its population is 7,082 (2022).Sebaste ancient city area is away from Sivaslı town center today.
The ancient city of Sebaste was founded by Roman Emperor
Augustus
Gaius Julius Caesar Augustus (born Gaius Octavius; 23 September 63 BC – 19 August AD 14), also known as Octavian (), was the founder of the Roman Empire, who reigned as the first Roman emperor from 27 BC until his death in A ...
in 20 AD, and was one of the 12 important cities of Roman
Phrygia
In classical antiquity, Phrygia ( ; , ''Phrygía'') was a kingdom in the west-central part of Anatolia, in what is now Asian Turkey, centered on the Sangarios River.
Stories of the heroic age of Greek mythology tell of several legendary Ph ...
. Under the
Byzantine Empire
The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the ...
, the city turned into a regional bishop seat. There are remains of Byzantine buildings from the 6th and 10th century, including two large basilicas.Örenyerleri Uşak İl Kültür ve Turizm Müdürlüğü.