Al-Milal wa al-Nihal (The Religions and Sects) is a landmark work of comparative theology by the 10th-century Persian scholar Muhammad ibn Abd al-Karim al-Shahrastani. It surveys major religions, sects, and philosophical schools known in the medieval Islamic world, describing doctrines, histories, and internal divisions with an unusually neutral, descriptive tone for its time. For readers today, it’s valuable for history of religion, Islamic studies, comparative theology, and intellectual history.
Kitab al-Milal wa al-Nihal (The Book of Sects and Creeds) is a foundational text in the history of religions and Islamic theology. Written by the Persian scholar Muhammad al-Shahrastani (d. 1153 CE) around 1127–1128, it is often cited as the first systematic and non-polemical study of global religions. al-milal wa al-nihal english pdf
This is a gray area. Since al-Shahrastani died in 1153, the original text is in the Public Domain. However, translations hold a separate copyright. Blog post — "Al-Milal wa al-Nihal English PDF":
Step 3 – Outline your version
Example chapters: Readability: The small OCR font in many PDFs
Classification of Faiths: The work divides world traditions into two primary categories: those with divine revelation (e.g., Islam, Judaism, Christianity) and those based on human reason or fabricated creeds (e.g., Greek philosophy, Brahmanism, and atheism).
Kharijites (الخوارج)
Doctrine: Severe interpretation of justice – major sin makes one an apostate, subject to killing.
Sub-sects: Azariqa, Najdat, Ibadiyya (al-Shahrastani treats Ibadis more mildly).
Al-Shahrastani’s critique: Contradiction between their claim of ruling by Qur’an and their literalist errors in tawhid.
What sets al-Shahrastani apart from his predecessors (like al-Baghdadi or Ibn Hazm) is his intellectual honesty. His exposure to various philosophical debates in Baghdad allowed him to engage with Greek philosophy, Zoroastrianism, Manichaeism, and even Indian thought in a way that was rare for his time.