Shanghai began as Huating County, an administrative district established in 751 AD. The county, located in an area known today as Songjiang District, had its boundary reaching today's Hongkou District in the north, Xiasha in the east and the coast in the south. In 991 AD, Shanghai Town was set up in the county. During the 1260-1274 period, the town evolved into an important trading port and in 1292, the then central government approved the establishment of Shanghai County in this area, which has been widely deemed as the official beginning of the city of Shanghai.