/kloc-before 0/4th century, the mainstream of immigration was

/kloc-before the 0/4th century, the mainstream of immigration was from north to south. /kloc-Before the middle of the 4th century, the main stream of immigrants was from north to south, from the Yellow River basin to the Yangtze River basin and then to the south. After the Yongjia Rebellion in the late Western Jin Dynasty, the Anshi Rebellion in the Tang Dynasty and the Jingkang Rebellion in the late Northern Song Dynasty, the influence was the greatest and the number of immigrants was the largest.