History
The Mon were the earliest known civilisation of the south. Their kingdom centred on Thaton was conquered by Anawrahta of Bagan in 1057, and the Mon script became the model for written Burmese. On the plateau, Shan (Tai) peoples, present by the 10th century, formed dozens of principalities ruled by hereditary princes, the saopha or sawbwa, who paid tribute to Burmese kings but ran their own courts.
After the First Anglo-Burmese War of 1824–26 Britain took Tanintharyi (Tenasserim), and Mawlamyine, then Moulmein, served as the capital of British Burma until Rangoon replaced it in 1852; it grew rich on teak and rice exports. The Shan and Karenni states were administered separately from Burma proper, and the princes kept their thrones. In the Second World War Japan built the Thailand–Burma railway with prisoner and conscripted labour, ending at Thanbyuzayat in Mon State.
The Shan princes signed the Panglong Agreement at a town on the plateau in 1947 and gave up their powers in 1959; the last prince of Hsipaw disappeared after the 1962 coup. The Karen National Union took up arms in 1949, beginning one of the world's longest insurgencies, and Shan, Karenni, Mon, Wa and Kokang armies fought the state for decades, funded in part by the opium of the Golden Triangle. Since the 2021 coup the southeast has been one of the main theatres of the war, with ethnic armies and new resistance forces taking territory from the military.
