Long Walls
The successors of Theodorus made few changes to the administrative subdivisions of the Empire. A few provinces were further subdivided. For example, the provinces of Epirus, Galatia, Palestina, and Thebais were split in two. At the beginning of the 6th century, the province of Aegyptus was also split in two. A separate Vicariate of the Long Walls was created in Thrace by Anastasius I (491-518).