to 1888. The US Air Force attacked it several times during World War II. Kokang was part of the Hsenwi Saopha territory before Myanmar's independence from the British. Population The ethnic groups found in Theinni are predominantly Shan and Jinghpaw, but there are many Chinese, Burmese, Lisu, Lahu, Wa, Palaung and Yanglam people in the town. Geography The northern part of North Theinni is a mass of hills affected by the geological fault which has produced the rift that forms the Nam Tu or Myitnge valley, and has thrown up a series of parallel ranges which extend northwards to the Shweli River (Lung Kiang), without altogether destroying the north and south trend which is the characteristic of the Shan hills as a whole. In the valleys between these hills are numerous tracts under rice cultivation, some circular or oval, some mere ribands along the river banks. The southern portion has much more flat land, along the, line of the Nam Tu, its tributaries the Nam Yao and the Nam Nim, and the Nam Yek flowing into the Salween. This was formerly densely populated, and still remains the most valuable portion of the state. A range running westwards from the Salween, and marking the southern border of the rift in the hills, divides North from South Theinni. Both north and south of the Nam Tu there are many peaks which rise to , and several over . The northern portion is almost consistent enough in its altitude of about to be called a plateau. It has large, grassy, upland downs. This part of the state has fallen almost entirely into the hands of the Kachins. The Shans are found in the Nam Mao (Shweli or Lung Kiang) valley, and in the Nam Tu and other valleys in the southern part of the state. The line of the Nam Mao is the lowest portion of North Theinni, being little over above sea-level. The southern valleys are about more than ft or higher. South Theinni is practically bisected by the huge mass of Loi Ling, nearly above sea-level, and by the spurs which that peak sends north and south. Apart from this it consists of broken hill-country of no great height, or open rolling downs, the latter chiefly in the eastern half of the state. It is watered by numerous streams, of which the chief is the Nam Pang, an affluent of the