What is the flow of people in Hainan in history?

There are many people exiled to Hainan, and Su Shi is the most famous one.

Born four years less (1097), Su Shi, who was 62 years old at that time, was sent to Danzhou, Hainan Island (now Dan County, Hainan), a desolate place. It is said that in the Song Dynasty, banishing Hainan was only a lighter punishment than copying others. He regards Danzhou as his second hometown. "I'm from Daner, and I live in Xishu." He runs a school here, introduces the style of study, and makes many people travel thousands of miles to Danzhou to learn from Su Shi. In the Song Dynasty 100 years, no one in Hainan ever entered the imperial examination. But soon after Su Shi returned to the north, Jiang Tangzuo here made a tribute to his hometown. For this reason, Su Shi wrote a poem: "The sea has never broken its pulse, and the pearl cliff has never been seen." People have always regarded Su Shi as the pioneer and sower of Danzhou culture, and have deep reverence for him. Dongpo Village, Dongpo Well, Dongpo Field, Dongpo Road, Dongpo Bridge, Dongpo Hat, etc. What has been circulated in Danzhou so far has expressed people's memory, and even the language has a kind of "Dongpo dialect".