Nanning (ˌnɑːnˈnɪŋ, ˌnænˈnɪŋ; ; Namzningz) is the capital and largest city by population of the Guangxi Zhuang Autonomous Region in Southern China. It is known as the "Green City (绿城) " because of its abundance of lush subtropical foliage. Located in the South of Guangxi, Nanning is surrounded by a hilly basin, with a warm, monsoon-influenced humid subtropical climate. Beginning in 1949, as it underwent sustained industrial growth, Nanning's economy began developing beyond its former role, and the city became essentially a commercial and administrative centre. Today, Nanning is considered the economic, financial and cultural center of Guangxi, and the chief centre for the training of the Zhuang minority in Guangxi. The People's Park is located in the center of the city. The city is home to several notable universities, including Guangxi University, Guangxi Medical University, Guangxi University for Nationalities and Guangxi Arts University. Nanning, an ancient city with a long history and rich culture, was part of Baiyue ethnic groups in the ancient time. In the first year of Daxing period of Eastern Jin Dynasty (AD 318), Jinxing County, established here as one of the county towns, ushered a history of 1700 years of Nanning organizational system. During the Zhenguan period of Tang dynasty (AD 632), it was renamed Yong prefecture (Yongzhou) and established Yongzhou government seat, which is why it has been called Yong (邕) for short. In the first year of Taiding period of Yuan dynasty (AD1318), Yongzhou was renamed Nanning, meaning the Pacified South. Nanning was once the territory of the Baiyue people and became the capital of Jinxing Prefecture which was separated from Yulin Prefecture of the Eastern Jin Dynasty. In 1076 during the Lý–Song War Yongshou was besieged by Lý forces. Under the leadership of Su Jian, the garrison held out for forty-two days before succumbing. The city was razed to the ground and its people massacred by Lý dynasty. In the Yuan dynasty in 1324, it was renamed Nanning Lu (Nanning Circuit) of Yongzhou.