When did the Roman Empire collapse?

The collapse of the Roman Empire took place in 395, it was divided into the western part, where the capital was Rome and the eastern part, where the capital was Constantinople, and 60 years before that it was the capital of a single empire, since the time of Emperor Constantine. They divided Libya approximately in half, and also the border passed through Dalmatia.
The Eastern Roman Empire went down in history as Byzantium, it lasted until 1453, and the Western Roman Empire in 410 was defeated by the Goths, in 455 by the Vandals, and in 476 it was finally finished off by the German Odoacer.