Mengyin County, located in the hinterland of Yimeng Mountain area in southeastern Shandong, is named after its location in the shade of Mengshan Mountain. It was founded more than 2200 years ago in the early years of the Western Han Dynasty. Mengyin is a national ecological demonstration zone, one of the top ten leisure tourism counties in China, the best leisure holiday destination in China, the first batch of strong tourist counties in Xiang Tao, China and the first eco-tourism demonstration county in Shandong Province. Popular in China, the beautiful world, intoxicated with peach blossoms, located in the hinterland of Yimeng Mountain area in southeastern Shandong, named after being in the shade of Mengshan Mountain. It was located in the county seat in the early years of the Western Han Dynasty more than 2,200 years ago. Mengyin is the hometown of A Qin general Meng Tian, astronomer of the Eastern Han Dynasty, "arithmetic sage" Liu Hong, writer of the Ming Dynasty Gong Nai and revolutionary pioneers Liu Xiaobo and Liu Yimeng.