The ecclesia or ekklesia (Greek: ἐκκλησία) was the assembly of the citizens in city-states of ancient Greece.
The assembly was responsible for declaring war, military strategy and electing the strategoi and other officials.
A police force of 300 Scythian slaves carried red ochre-stained ropes to induce the citizens who loitered in the agora of Athens to attend the meetings of the assembly.
In ancient Greece, an ekklesiasterion was a building specifically built for the purpose of holding the supreme meetings of the ecclesia.
The meetings of the assembly could attract large audiences: 6,000 citizens might have attended in Athens during the fifth century BC.