Hinduism (/ˈhɪnduɪzəm/) is an Indian religion or dharma, a religious and universal order or way of life by which followers abide. As a religion, it is the world's third-largest, with over 1.2–1.35 billion followers, or 15–16% of the global population, known as Hindus. The word Hindu is an exonym, and while Hinduism has been called the oldest religion in the world, many practitioners refer to their religion as Sanātana Dharma (Sanskrit: सनातन धर्म, lit. ''the Eternal Dharma''), a modern usage, which refers to the idea that its origins lie beyond human history, as revealed in the Hindu texts. Another endonym is Vaidika dharma, the dharma related to the Vedas.