Tianhe.
A great river that cuts across the north and south of Qiantian.
In the era before divine weapons were born, the territory of the Daqian was not even a third of its current size.
With the advent of divine weapons, the previous Emperor Qian and the Imperial Advisor Tai A, with the power of the divine weapons' radiance, swept clean the Eight Desolates and purified the Six Directions.
Once-surrounding regions like the Endless Mountains of Winter State, the Thirty-Six Tribes of Yan State, the Eighteen Islands of the Eastern Sea, and originally Rixiang Country, Nanyun Kingdom, and so on, became the Winter State, Yan State, Lizhou State, Island State, Mu State, and other parts of Daqian.
The territory of Daqian expanded by threefold.
It stretched north to the Endless Mountains, bordered the Vast East Sea to the east, extended into the deserts of Yan State to the west, and reached the Three Thousand Marshes to the south.