Columbia is the largest city in South Carolina, the state capital, located in the middle, and the upstream terminal of the Congley River. The estimated population is about122,819 (2006). As the county seat of Richland, the city is also the main part of the Colombian metropolitan area, with a population of 122 and 8 19 respectively. The University of South Carolina is located here. 1786 was built as the state capital, and 1865 was destroyed during the civil war and then rebuilt. It is a distribution center for agricultural products such as cotton, and is still one of the centers of cotton spinning industry in South China, with developed industries such as agricultural and forestry products processing, electronic instruments, glass, plastics and chemical fertilizers. Cultural and educational center.