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鲁南明珠南四湖,是我国北方较大的淡水湖之一。南四湖由微山湖、昭阳湖、独山湖、南阳湖组成,南北长126公里,湖面积1266平方公里。 南四湖底南北各有一座古城,南部微山湖底有留城;北部昭阳湖底有湖陵城。根据有关历史资料证明,古留城在今微山湖微山岛的西南方向;湖陵城在今微山县张楼乡程子庙村东昭阳湖内,留城、湖陵城相距50公里。随着南四湖的形成,明朝末年留城和湖陵城被淹没在水下,成为南四湖底的两座古城。 秦代推行郡县制,设置留县,隶属泗水郡。秦末刘邦发动和领导农民起义,农民战争暴发后,张良积极响应,聚众归顺刘邦,成为刘邦的重要谋士。张良为刘邦夺取政权,建立帝业,立
Lunan Pearl South Lake, is one of the larger freshwater lakes in northern China. Nansi Lake is composed of Weishan Lake, Zhaoyang Lake, Dushan Lake and Nanyang Lake, with a total length of 126 km from north to south and a lake area of 1266 km 2. There is an ancient city in the south and the north of the Nansi Lake, the remaining cities in the southern Weishan Lake, and the Hualing City at the bottom of the Zhaoyang Lake in the north. According to the historical data prove that the ancient city left Weishan Lake Weishan Island in the southwest direction; Hualing City in Weishan County Zhanglou Township Chengzi Miaocun Dong Zhaoyang Lake, stay in the city, 50 km away from the city of Hualing. With the formation of Nansi Lake, the remaining cities of Ming Dynasty and Hualing City were submerged under water and become two ancient cities at the bottom of Nansi Lake. Qin County system, set to stay in the county, under the Surabaya County. After the outbreak of the peasants’ uprising in the end of Qin and the peasant uprising in the end of the Qin Dynasty, Zhang Liang responded positively and gathered together to Liu Bang and became an important adviser to Liu Bang. Zhang Liang for Liu Bang seize power, the establishment of Imperial industry, legislation