Tongchuan:
Tongchuan, commonly referred to as Tongchuan District, belongs to Dazhou City, Sichuan Province, which is located in the northeast of Sichuan and the middle of Dazhou City. Its geographical coordinates are10720' 37.5 "east-10739' 22.5" north latitude 3007' 30 "-3128". As of September, 2002 1 year, Tongchuan district has five sub-district offices, 12 towns and1township.
The development of history
1950 daxian district, northern administrative region of Lichuan.
1952 to Daxian District, Sichuan.
In 1968, Daxian District was changed to a region.
1976, Daxian City was established from Daxian District.
1993 was renamed dachuan city.
1999 was renamed Tongchuan district. ?
Refer to the above? Baidu encyclopedia-Tongchuan