21 and North Sophora Tree Street north of Peking University of Peking University, Peking University of Peking University The center street. East weft nine road, West stop twelve road. According to "Huaiyin District Chronicles", "before the Ming Dynasty, from the south of the big Sophora japonica East first, north of the big Sophora tree East Street, two road, to the north of the Peking University tree west head, a soil stone hill, South High North low, winding undulating, seemingly long dragon, planting trees on the post, resisting wind sand". South Huai tree area, people thrive, ancient name Panlong village. Later, in the Ming and Qing Dynasties (thirty-six years ago, Qianlong Emperor Qianlong), there were three big Huai Shu Chuang in South, North and central. Qing Guangxu thirty years (1904), Ji'nan opened commercial port, South, north, central three Huai tree village. Gradually become a urban residential area. In 1947, it abolished the three largest Huai tree village in South, North and central China. Its central streets were renamed "Huai Shu Street" in the south, and Huai tree in North China.