How much of Greece did the Romans conquer?

 The Romans gradually expanded their influence over Greece, culminating in the incorporation of the entire Greek peninsula into the Roman Republic and later the Roman Empire. The process began in the second century BCE, during the Macedonian Wars, when Rome engaged in conflicts with the Hellenistic kingdoms, including the Kingdom of Macedon.

The Romans decisively defeated the Macedonian king Perseus at the Battle of Pydna in 168 BCE, marking the end of Macedon as an independent power. Subsequently, the Romans divided the region into smaller entities, known as the "Province of Macedonia" and the "Province of Achaea."

Greece became a Roman province after the Roman victory over the Achaean League at the Battle of Corinth in 146 BCE. The Roman general Lucius Mummius sacked Corinth and brought Greece under Roman control. This event marked the end of Greek independence and the beginning of its integration into the Roman Republic.

Throughout the Roman Empire's history, Greece remained an essential part of the eastern provinces. Greek culture, philosophy, and literature continued to flourish during the Roman period, and major cities like Athens retained their significance as cultural and intellectual centers. The region remained under Roman rule until the fall of the Western Roman Empire in 476 CE.

In summary, the Romans conquered and incorporated the entirety of Greece into their expanding Republic and later Empire, starting with the Macedonian Wars in the 2nd century BCE and solidifying their control with the establishment of the Roman provinces in the region.