context: Carmatians in relation to the Carmatian state, which split from the Fatimid state and took place after a social revolution and assumed a religious character. The Carmatians established their state in the current Al-Ahsa Governorate in eastern Saudi Arabia. Some researchers consider it one of the first socialist revolutions in the world. The Carmatians were mainly famous for their revolution against the Abbasid caliphate.
question: Who are Carmatians?
answers.text: in relation to the Carmatian state, which split from the Fatimid state and took place after a social revolution and assumed a religious character