"The key to Athenian democracy was the Assembly, or ecclesia. It was in modern terms legislature, judiciary, and executive, and there was no appeal against its decisions except to a later meeting of itself, or a court that was part of itself. Although its potential membership was 40,000, it operated through many smaller bodies, through courts of 500 members, and in particular through the 500 members of the governing council, or boule, whose members formed the Athenian administration for a year, and the prytany, the 30-strong body whose members formed the managing committee of the boule for a month at a time."