Ahom
From WikiAssam
The Ahoms ruled parts of modern Assam from 1228 to 1826. They were a Tai (Shan) people who had their kingdom based in the present day city of Ruili in the Yunan province of China, very close to the border with Myanmar.
The Ahoms introduced wet rice cultivation in the region. They considered the land xunor xophura and slowly expanded their kingdom. They defended the land against foreign invaders, the most celebrated being the army lead by Aurangzeb's general Ram Singh, who was defeated by the Ahom General Lacit Borphukan at Saraighat. They alternatively fought against and befriended the Koch.
They organized the people in strict hierarchies called the Pike system and kept meticulous accounts and chronicles (called Buranjis). Their power and glory declined with the rise of the Moamoria rebellion, and subsequent invasion by the army of Ava in Myanmar. With the Treaty of Yandaboo signed between the rulers of Ava and the British in 1826, their 600 years of rule ended.

