James Freeman Clarke, author of "Ten Great Religions," presents a comprehensive Comparative Religion study and History of Religions, delving into the origins and development of Ancient Religions and their impact on World Religions history, including Ethnic Religions analysis and Catholic Religions analysis. Clarke examines Brahmanism history, exploring texts like the Vedas sacred text and Upanishads philosophy, and concepts such as Transmigration belief, Karma concept, and Maya illusion Vedanta, alongside works like the Laws of Manu text, the Ramayana epic, and the Mahabharata epic. He details Buddhism history, focusing on Sakya-muni Buddha life and the pursuit of Nirvana concept, comparing Salvation by knowledge and Salvation by faith. The book covers Confucianism beliefs, highlighting Confucius philosophy and the role of Civil Service Examinations China. It explores Zoroastrianism religion and the teachings of Zoroaster teachings, discussing the Dualism religion with figures like Ahura Mazda Zoroaster, and texts like the Zend Avesta scriptures. Mohammedanism history and the Mohammed prophet life are examined through Koran study. Clarke also delves into Jewish religion history and Jewish wisdom literature, Egyptian religion ancient with its Egyptian afterlife beliefs, the Book of the Dead Egyptian, and deities like Osiris Egyptian god, as well as Greek religion history, touching upon Greek philosophers ethics and Sacrifice in ancient religions. He also provides insight into Teutonic religion mythology, discussing Norse Mythology, Valhalla mythology, and figures such as Odin Thor mythology. The James Freeman Clarke book draws upon extensive Oriental literature study, acknowledging scholars like Sir William Jones Orientalist and the importance of Comparative Philology for understanding connections like the Indo-European family and Aryan migration. The text also touches on historical events such as the Ti-Ping Rebellion history and the presence of Nestorian Christianity China. This work lays the groundwork for a Christianity comparison religions, aiming to provide readers with a deeper understanding of diverse religious traditions.