Map of the Eastern and Western Roman empires around 330 CE. Areas belonging to the Western Roman Empire include Britain, Gaul, Spain, Italy, and sections of Northern Africa. The city of Rome is labeled in the Western Roman Empire. Areas belonging to the Eastern Roman Empire include Thrace, Macedonia, Greece, and Egypt. The cities of Constantinople and Anatolia are labeled in the Eastern Roman Empire. The Western and Eastern Roman empires encircle the Mediterranean Sea. The Black Sea borders the northeastern area of the Eastern Roman Empire.

Which of the following regions did not become part of the Byzantine Empire

Britain and Gaul

Explanation:

The Byzantine Empire was the eastern part of the Roman Empire that survived throughout the Middle Ages and the beginning of the Renaissance. This empire was located in the eastern Mediterranean and its capital was Constantinople. At the death of Emperor Theodosius I, in 395, the Empire was finally divided: Flavio Honorio, his youngest son, inherited the West, with its capital in Rome, while his eldest son, Arcadio, corresponded to the East, with its capital in Constantinople. For most authors, it is from this moment that the history of the Byzantine Empire begins. The Byzantine Empire inherited the regions of Greece, Anatolia, Thrace, Macedonia, and the Middle East. After the fall of the Western Roman Empire, and especially under the rule of the emperor Justinian, the Byzantine Empire took an aggressive campaign of reconquest, through which it gained the regions of Northern Africa, Italy, and Southern Spain, ruling over almost the entire Mediterranean Sea. The only regions that were not under Byzantine domain were Gaul (France) and Britain.