History of Europe
In 395 Theodosius I, who had made Christianity the official religion of the Roman Empire, would be the last emperor to preside over a united Roman Empire. The empire was split into two halves: the Western Roman Empire centred in Ravenna, and the Eastern Roman Empire (later to be referred to as the Byzantine Empire) centred in Constantinople. The Roman Empire was repeatedly attacked by Hunnic, Germanic, Slavic and other “barbarian” tribes (see: Migration Period), and in 476 finally the Western part fell to the Heruli chieftain Odoacer.
The Fall of the Roman Empire (film)
The film's plot is only loosely based on actual historical events. However, in the long-established view of Roman history, Marcus Aurelius is considered as the last of the Five Good Emperors whose time is considered the best of Roman imperial history. Commodus is generally considered to have fallen far below the standard set by his father and the four earlier Emperors, and his reign is considered as the beginning of the decline - though that would still take several centuries.