The western half of the Roman Empire lasted for about 500 years till the barbarian general Odoacer deposed its final emperor Romulus Augustus. On the other hand, the eastern half, consisting of the Balkans, Anatolia, The Levant and Egypt, continued for about a thousand years more (the Levant and Egypt were lost to the Arabs in the 8th century). The eastern part was called the Byzantine Empire. Its capital was Constantinople, now called Istanbul.