Is government by assembly a characteristic os Athens Sparta or both?

Government by assembly is a characteristic of Athens. In Athens, the Assembly (Ekklesia) was a central institution where citizens could participate directly in decision-making and vote on important issues. In contrast, Sparta had a mixed government system that included a council of elders (Gerousia) and dual kingship, limiting direct citizen involvement in governance. Therefore, while both city-states had unique forms of governance, the assembly was primarily associated with Athens.