In what historical period did Li's ancestors move to Hainan?

According to the latest archaeological data, human activities began in Hainan Island at the latest 1 10,000 years ago. From the pre-Qin Dynasty to the Western Han Dynasty, Max Loehr, a branch of Baiyue people in ancient times, was distributed in Hainan Island. According to the analysis of archaeology, linguistics, ethnology, historical geography and other disciplines, Luoyue people are the ancestors of Li people. In the first year of Emperor Yuanfeng of the Han Dynasty (1 10 BC), Zhu Ya and Yu 'er counties and Tandu, Gouzhong, Jiulong and Zhilai counties were set up in Hainan Island, and the number of Han immigrants gradually increased. Some ancestors of the Li nationality began to contact with the Han nationality who moved south, mastered advanced ironware and farming techniques, developed social productive forces, and began to transition from primitive society to class society. In the middle of 1 century, Ma Yuan, the general of Fu Bo in the Eastern Han Dynasty, settled in Pearl Cliff and built Chengjie in Hainan. Feudal rule was gradually consolidated, and later generations had the saying that "General Fu Bo opened Qiong".