However , limited information is known about it .
Archaeological excavation of sites dating back to the Dilmun civilisation of the Bronze Age in Bahrain have revealed the existence of a ritualistic polytheistic religion that was believed to contain elements of theatre .
Limited information is known about it .
Archaeological excavation of sites dating back to the Dilmun civilisation of the Bronze Age in Bahrain have revealed the existence of a ritualistic polytheistic religion that was believed to contain elements of theatre .