WHAT DOES 8KBET MEAN?

The civil war in between the Lê-Trịnh and Mạc dynasties resulted in 1592, when the military of Trịnh Tùng conquered Hanoi and executed king Mạc Mậu Hợp. Survivors in the Mạc royal family members fled to the northern mountains in the province of Cao Bằng and ongoing to rule there right up until 1677 when Trịnh Tạc conquered thi