The "Great Rhetra" was a foundational document in ancient Sparta that outlined the political and social structure of the city-state. Traditionally attributed to the legendary lawgiver Lycurgus, it established the framework for the Spartan government, emphasizing the roles of the Gerousia (council of elders) and the Apella (assembly of citizens). This document also set forth the principles of military training and communal living, which were central to Spartan society. The Great Rhetra aimed to create a disciplined and unified citizenry, ensuring that all Spartans contributed to the strength and stability of their state.