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The Boule

In 594 BC, Solon is said to have created a boule of 400 to guide the work of the assembly. After the reforms of Cleisthenes, the Athenian Boule was expanded to 500 and was elected by lot every year. Each of Cleisthenes's 10 tribes provided 50 councilors who were at least 30 years old. The Boule's roles in public affairs included finance, maintaining the military's cavalry and fleet of ships, advising the generals, approving of newly elected magistrates, and receiving ambassadors. Most importantly, the Boule would draft probouleumata, or deliberations for the Ecclesia to discuss and approve on. During emergencies, the Ecclesia would also grant special temporary powers to the Boule.