It later became a separate Province by the Augustan Settlement of 27 BC , which established the Roman Empire .
Achaea or Achaia was initially part of the Roman Pronvince of Macedonia ( from 146 to 27 BC ) .
Macedonia later became a separate Province by the Augustan Settlement of 27 BC , which established the Roman Empire .
Achaea or Achaia was initially part of the Roman Pronvince of Macedonia ( from 146 to 27 BC ) .