Ancient Rome and ancient Greece is this a state?

Ancient Rome was a state that for the first 160 years of its existence had a royal form of government, and then passed to the republican one, and it lasted until the middle of the 1st century BC. Further, Rome existed as a single empire until the division into eastern and western parts at the end of the 4th century. In the same century, he changed religion – paganism to Christianity.

Ancient Greece is a broader term that includes:

The Minoan civilization in Crete and the civilization of mainland Greece from the period before the invasion of the Dorians.
Polis states – Athens, Delphi, Sparta (Lacedaemon).
States of the Hellenistic period, until the middle of the 2nd century BC