The Four Great Religions

This present Theosophical work is a compilation of four different lectures delivered by Annie Besant of the Theosophical Society, and details a bit about the history and lore of Hinduism, Zoroastrianism, Buddhism, and Christianity (in both the Protestant and Catholic senses.) Largely, it seeks to display how they represent different eras and aspects of spiritual development, often drawing comparisons between them. It is well sourced and refers frequently to texts considered holy within each religious group, such as the Zend Avesta and Upanishads.