Sukaphaa (), also Siu-Ka-Pha, the first Ahom king in medieval Assam, was the founder of the Ahom kingdom and the architect of Assam. A prince of the Su/Tsu (Tiger) clan of the Mao-Shan sub-tribe originally from present-day Mong Mao, Yunnan Province, China, the kingdom he established in 1228 existed for nearly six hundred years and in the process unified the various ethnic groups of the region that left a deep impact on the region. In reverence to his position in Assam's history the honorific Chaolung is generally associated with his name (Chao: lord; Lung: great). Since 1996 December 2 has been celebrated in Assam as the Sukaphaa Divox, or Axom Divox (Assam Day), to commemorate the advent of the first king of the Ahom kingdom in Assam after his journey over the Patkai Hills. Ancestry Legend According to Ahom tradition, Sukaphaa was a descendant of the god Khunlung, who had come down from the heavens and had ruled Mong-Ri-Mong-Ram. During the reign of Suhungmung, which saw the composition of the first Assamese chronicles.Sukaphaa brings a divine diamond chum-Phra-rung-sheng-mung in a box, a divine tusked elephant, a divine chicken Kaichengmung, a divine embroidered cloth, a divine pair of drums, a divine sword Hengdan. Prince of Mong Mao The details of Sukaphaa's life and origins before his entry into Assam, available from different chronicles, both Ahom and non-Ahom, are full of contradictions. According to who has tried to hold up a consistent account, Sukaphaa was born to Chao Chang-Nyeu (alias Phu-Chang-Khang) and Nang-Mong Blak-Kham-Sen in the Tai state of Mong Mao (also called Mao-Lung, with the capital at Kieng Sen), close to present-day Ruili in Yunnan, China. Chao Chang Nyeu was a prince from Mong-Ri Mong-Ram, who had traveled to Mong Mao possibly on an expedition. Mong Mao was then ruled by Chao Tai Pung. Chao Chang Nyeu was later befriended by Pao Meo Pung, the son of the ruler, who gave his sister Blak Kham Sen in marriage. Sukaphaa was born of this union not later than 1189 CE and was brought up by his maternal grandparents. Pao Meo Pung, who eventually ruled Mong Mao, had no male heir and Sukaphaa, his nephew, was nominated to succeed him. A son born late to Pao Meo Pung's queen ended Sukaphaa's claim to the throne of Mong Mao. Departure from Mong Mao After his 19 years as crown prince came to an end,