What was the name of Constantinople before the emperor Constantine?

This city was called – Byzantium. Back in 667 BC, the city was founded by the ancient Greeks. After some time, the city acquired an important trade value. During the reign of Emperor Constantine, he was elected as the new capital. For this reason, the city was renamed Constantinople. This happened in 330. In the future, the city became the capital of the Byzantine Empire, when the Western Roman Empire was already destroyed. We can say that Constantinople personified the second Rome.