トゥアティエン＝フエ省
On March 11, 1977, the district was merged with those of Hương Trà and Quảng Điền to become the district of Hương Điền in the province of Bình Trị Thiên (1976–89). On September 29, 1990, Hương Điền was redivided into the three original districts and put in Thừa Thiên–Huế Province.