An amphictyony was an ancient Greek religious association of neighboring tribes or city-states that came together to protect a shared sanctuary. These groups would meet periodically to discuss common interests, resolve disputes, and manage the affairs of the sanctuary, often centered around a significant religious site, such as the one at Delphi. The most famous amphictyony was the Delphic Amphictyony, which included various Greek tribes and played a crucial role in the administration of the Oracle of Delphi. This organization helped maintain peace among its members and facilitated cooperation in religious and political matters, reflecting the interconnectedness of ancient Greek society.