解放以前，朝阳区属于城市部分的区域极小，除在朝阳门外关厢，建国门外有一些旧的居民区，在九龙山有几个工厂外，基本上以农村为主。现在的东大桥、工人体育馆和建国门外建华路以东均为农业用田。 朝阳门在元朝时叫齐化门，明朝时史称朝阳门。朝阳门与朝阳区名有无联系，并无 Before the liberation, Chaoyang District belonged to the urban part of the area is extremely small, except in the Chaoyang door off the car, there are some old residential areas outside the founding of the Republic, there are several factories in Jiulongshan, basically rural areas. Now East Bridge, Workers Stadium and Jianguomen Jianhua Road East are agricultural fields. Chaoyang Gate Qi Yuanhua in the Yuan Dynasty when the Ming Dynasty, said the history of the Chaoyang Gate. Chaoyang Gate and Chaoyang District, there is no connection, there is no