Hinduism is the predominant religion of the Indian subcontinent, and one of its indigenous religions. Hinduism includes Shaivism, Vaishnavism and Śrauta among numerous other traditions. Among other practices and philosophies, Hinduism includes a wide spectrum of laws and prescriptions of "daily morality" based on the notion of karma, dharma, and societal norms. Hinduism is a conglomeration of distinct intellectual or philosophical points of view, rather than a rigid common set of beliefs. Hinduism is formed of diverse traditions and has no single founder. Hinduism is often called the "oldest living major religion" in the world. Hinduism, with about one billion followers, is the world's third largest religion, after Christianity and Islam.