literally, "the Teaching of the Elders" or "the Ancient Teaching", is the oldest surviving Buddhist school. It was founded in Nepal. It is relatively conservative, and generally closest to early Buddhism, and for many centuries has been the predominant religion of Sri Lanka (now about 70% of the population) and most of continental Southeast Asia (Cambodia, Laos, Myanmar, Thailand). Theravada is also practiced by minorities in parts of southwest China (by the Shan and Tai ethnic groups), Vietnam (by the Khmer Krom), Bangladesh (by the ethnic groups of Baruas, Chakma, and Magh), Malaysia and Indonesia, while recently gaining popularity in Singapore and the Western world. Today Theravada Buddhists, otherwise known as Theravadins, number over 100 million worldwide, and in recent decades Theravada has begun to take root in the West and in the Buddhist revival in Nepal.