The Thai are descended from a much larger group of Tai-speaking peoples. The latter are found from extreme northeastern India in the west to northern Vietnam in the east and from southern China in the north to as far south as the central Malay Peninsula. In the past, scholars held that a parent group called the Proto-Tai originated in southern China and pushed southward and westward from the China landmass into northern mainland Southeast Asia. Most scholars now believe that the Tai came from northern Vietnam around the Dien Bien Phu area and that about 1,000 years ago they spread from there northward into southern China; westward into southwestern China, northern Myanmar (Burma), and northeastern India; and southward into what are now Laos and Thailand.