Greece in the Roman era
The Roman era of Greek history began with the Corinthian defeat in the Battle of Corinth in 146 BC. However, before the Achaean War, the Roman Republic had been steadily gaining control of mainland Greece by defeating the Kingdom of Macedon in a series of conflicts known as the Macedonian Wars. The Fourth Macedonian War ended at the Battle of Pydna in 148 BC and defeat of the Macedonian royal pretender Andriscus.
The definitive Roman occupation of the Greek world was established after the Battle of Actium (31 BC), in which Augustus defeated Cleopatra VII, the Greek Ptolemaic queen of Egypt, and the Roman general Mark Antony, and afterwards conquered Alexandria (30 BC), the last great city of Hellenistic Greece. The Roman era of Greek history continued with Emperor Constantine the Great's adoption of Byzantium as Nova Roma, the capital city of the Roman Empire; in AD 330, the city was renamed Constantinople. Afterwards, the Byzantine Empire was the Eastern Roman Empire, including Roman and Greek culture.