Detailed overviews of Judaism and Christianity, including their various internal sects and theological evolutions.
Here is the text regarding Kitab al-Milal wa al-Nihal : kitab al milal wa al nihal pdf d
Unlike many of his contemporaries who wrote polemical attacks against rival sects, al-Shahrastani adopted an objective approach. He aimed to document the world's beliefs as their adherents understood them. His work is divided into two primary categories: Detailed overviews of Judaism and Christianity