The Igbo society was the one which was described as Acephalous.
It was a typical example of a non-centralized or acephalous society before the coming of European political system in Nigeria. It had no single centralized authority as was the case with the Hausa/Fulani or Yoruba.
The Igbos maintained an egalitarian as well as democratic society. Every adult belonged to the Amala meeting where everybody expressed his views or opinion.