2nd century in Greece

The Panhellenion () or Panhellenium was a league of Greek city-states established in the year 131–132 AD by the Roman Emperor Hadrian while he was touring the Roman provinces of Greece. The League was established following a ceremony at the Temple of Olympian Zeus in Athens, the capital city of the Panhellenion. Evidence suggests that the Panhellenion continued to survive until the 250s AD.