Qarmatians
The Qarmatians were a syncretic Ismaili branch that emerged in the 9th century in Bahrain and eastern Arabia. They developed a distinct theology that incorporated elements of Neoplatonism, Gnosticism, and Zoroastrianism, alongside their Shia Muslim roots. Initially a reformist movement, they gained significant influence and established a powerful state in the region. Their societal structure was notably egalitarian, with communal ownership of property and a high degree of social mobility.
The Qarmatians are known for their militant activities, particularly their raids on the Hajj caravan routes