Dien Hai Citadel was first built as a military outpost under the Nguyen Dynasty (1802–1945) under King Gia Long near the mouth of the Han River to control access to the port of Da Nang and to act as a defensive position.

Ví dụ, các bài viết liên quan đến từ han. Các từ vựng liên quan đến từ vựng trong câu ví dụ.