... (Nam thien de tam dong), dong Thien Ton Dac biet co vung mii doi, khe suoi, thung liing, deo doc vdi deo Ba Doi (con goi la deo Tam Diep) noi tieng, Kem Do liing danh "CO hong Bac - ... xuyen qua 5/8 huyen, thi xa ciia tinh, dUdng sat Bac - Nam chay qua tii thi xa Ninh Binh den doc Xay thuoc thi xa Tam Diep. Vung bien d Ninh Binh nam trong viing bien bdi; day bien nong; ... Bac), tii dat nien hieu rieng la "Thdi Binh" (970). Day la viec lam bieu thi y chi doc lap, thong nhat dat nUdc, khdng chiu le thuoc vao ngoai bang. Thang 7 nam 980, nhan tha'y...