How big is Hainan?

Hainan Island is a beautiful and rich island with a long history. In geological period, Hainan Island was originally associated with Chinese mainland, but it was only separated from the mainland in the Quaternary when humans appeared, during which the Qiongzhou Strait with a width of 15 ~ 30 km was formed. This island is isolated in the South China Sea, hence the name "Hainan Island". There are three ancient names of Hainan Island in history: Zhu Ya, Fish and Qiongtai. According to the literature, the "Pearl Cliff" originated from "the county is on the edge of the sea cliff and produces pearls", hence the name "Pearl Cliff"; "Boer" originated from the embroidery custom of ancient tribes in Hainan Island (carving patterns on the face, painting colors and hanging decorative earrings on the ears), hence the name. "Qiongtai" originated from "there is Qiongshan in the white stone, and the earth and stone are white and moist". During the reign of Xining in Song Shenzong, Qiongzhou set Qiongguan to appease the capital station, so it was called Qiongtai. According to 200 Neolithic sites and historical documents discovered by archaeological work, it is inferred that Hainan Island existed at least 6000 years ago and there were human activities. According to the Records of Qiongzhou, Hainan in Qin Dynasty belonged to its remote areas and had no organizational system. In the first year of the Western Han Dynasty (BC 1 10), two counties, Bohai and Zhu Ya, were established. In the third year of Yuan Dynasty in Yuan Di (46 BC), there was only one county called Zhulu County. During the Northern and Southern Dynasties, Liang Wudi established a state, which was called "Cliff State". There were two counties of Linzhen and Zhu Ya in Sui Dynasty, and five counties of Yazhou, Qiongzhou, Zhou Zhen, Danzhou and Wanzhou in Tang Dynasty. In the Song Dynasty, there were three armies in one state, five counties in Qiongzhou, three counties in Nanning, two counties in Wan 'an and three towns in Jiyang. The organizational system of Hainan in Yuan Dynasty was mostly similar to that of Song Dynasty, and there was no big change. In Ming Dynasty, Hainan established Qiongzhou Prefecture, which was in charge of Nai, Wan and Ya counties 10. The organizational system of Hainan in Qing Dynasty still followed that of Ming Dynasty. In the early years of the Republic of China, Hainan abandoned the road and set up a civil affairs department, which was later changed to an administrative Duzhai District and a special administrative region. After liberation, Hainan was changed into an administrative region with an administrative office, and a province was established in 1988, which was called Hainan Province. The evolution of Hainan's organizational system, from the establishment of Qiongya county in the early Han Dynasty to the establishment of 1988 province, lasted for 2098. With the change of dynasties, place names often change, so Hainan place names are called "Yazhou", "Qiongzhou" and "Qiongya". In the inscriptions on poems, there are names such as Overseas, Antarctic, Tianya, Cape and Nantian. The name "Hainan" only appeared frequently in the Song Dynasty and was widely used after the Republic of China. As a local administrative region of Hainan, its official title is 195 1 year after liberation, and it is called "Hainan Administrative Office". 1988 was upgraded to a province, referred to as "Hainan Province" or "Qiong".

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