How many Hakkas moved south in the Central Plains?

The exact figures are hard to find. Hakka ancestors began to go south as early as the Qin Dynasty. Historians in China have always believed that "the Han people who moved south from the Central Plains are called Hakkas". "Han people" here should mean "Han people", not "Han people", because Zhao Tuo of the Qin Dynasty came to Lingnan to develop the earliest Hakka base. After Qin Shihuang conquered the Baiyue nationality in Lingnan, he "migrated 500,000 to defend it". How did these 500 thousand Zhongyuan people come to Lingnan? According to records, one is Xiangjiang-Lingqu-Lijiang-Xijiang waterway; One is the combined transport of Xiaoshui-Xindao-Heshui-Xijiang; One is the land and water transport of Leishui-Huangshui-Beijiang River; One is Ganjiang-Hengpu (that is, Meiguan)-Mianshui-Beijiang land and water transport; First, Ganjiang-Dongjiang combined water and land transport. Xijiang River system becomes the main area of Guangzhou dialect, Dongjiang River system becomes the main area of Hakka dialect, and Beijiang River system becomes the mixed area of Guangzhou dialect and Hakka dialect. When Qin Shihuang had 500,000 troops going south, one of them was stationed in the south of Jiangxi. It should be a convenient land and water transportation line in Taojiang River, Gongshui Lianjiang River and Xiangshui River in the upper reaches of Ganjiang River, crossing Dingnan Water and looking for Dongjiang River under water. Zhao Tuo may be in this area, so it was named Longchuan county magistrate after going south. Longchuan has always been a Hakka ancestor who speaks Hakka dialect. At the end of the Eastern Han Dynasty, a group of scholars from the Central Plains took refuge in Lingnan, and the truly large-scale "Hakkas" moved south mainly for these three times: the first time was the "Eight Kings Rebellion" at the end of the Western Jin Dynasty and the beginning of the Eastern Jin Dynasty, also known as the "Yongjia Rebellion", and the subsequent "Five Wild Flowers", that is, ethnic minorities such as Xiongnu, Xianbei, Jiedi and Qiang invaded the Central Plains and fled the chaos one after another. The second time was the Huang Chao Uprising in the late Tang Dynasty, which proclaimed itself emperor and failed. The route taken was almost the same as that of the Hakkas fleeing south. The third time was at the end of the Southern Song Dynasty, when Yuan soldiers advanced, and Hakka ancestors entered Meizhou, Zhou Xun and Huizhou in eastern Guangdong from southern Jiangxi and southwestern Fujian. At that time, the household registration was divided into "master" and "guest", and all immigrants were naturalized as "Hakkas". At this time, "Hakka" immigrants poured in, and "guest" was better than "master". This is the change of "Hakka" from "to". The southward army of "Hakka" is constantly expanding, including the expansion of the team and the expansion of the territory. In the late Ming and early Qing Dynasties, under the influence of Manchu occupation of the Central Plains, some Hakkas moved to Taiwan Province with Zheng Chenggong. During the Kangxi period of the Qing Dynasty, Sichuan suffered from war and plague for a long time, and its population decreased greatly. The Qing court initiated the migration movement of "moving lakes to fill Sichuan", which was the origin of Hakka people in Sichuan. After the Taiping Heavenly Kingdom Movement led by Hakka Hong Xiuquan failed, Hakka people moved overseas. At present, "Hakkas" are mainly distributed in Guangdong, Fujian, Jiangxi, Hunan, Sichuan, Hainan, Guangxi, Yunnan, Guizhou, Hong Kong, Macau, Taiwan Province and other places, as well as Thailand, Malaysia, Singapore, Indonesia, Brunei, Mauritius, Reunion and the United States. Trees attract the wind, leaves fall to the roots, and roots are in the Central Plains. Of the more than 10,000 surnames of the Chinese nation, more than 1500 originated in Henan, and 73 of the common surnames of 1000 originated in Henan. The seven surnames with a large population, such as Chen, Lin, Li, Xu, Cai, Huang and Zheng, also originated in Henan. There are nearly 100 million Hakkas all over the world, and they often go back to Henan to find their roots and ancestors. In 1980s, the Zheng family from Hong Kong and Taiwan returned to Xingyang, Henan Province to worship their ancestors, the Su family from Taiwan Province went to Linzhang, northern Henan Province to look for their ancestors, and the Bai family from Singapore went to Longmen, Luoyang to worship Bai Juyi. In the 1990s, Thailand's Xie surname went to Tanghe and Nanyang in Henan Province to seek roots, Philippines' Hong surname went to Guangshan County in Henan Province to worship ancestors, Thailand's Singapore's Huang surname went to Gushi County in Henan Province to worship ancestors, and Hong Kong and Macao's Ye surname went to Yexian County in Henan Province to worship ancestors.