Countries that emerged after the fall of Balhae that were not learned from textbooks

Although there is little historical information, it is definitely not an illusion, and the Balhae modeling movement clearly exists.
Haeum
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Jeong An-guk
The only national flag mentioned in Korean history textbooks
It lasted long enough to go to two continents.
In the Liao Dynasty
How many nets
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Yeonpa soup
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Olyaguk
It existed as a vassal state of Liao, but there were no records for more than 100 years.
Just before the fall of the Liao Dynasty, the Jin Dynasty took over 100 years later.
It is said that he surrendered to Acoltha.
the end of rock
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Hongyo Guk
Orae
against
Built by Balhae refugees who revolted in Liaodong
He requested support from Goryeo several times, but was rejected and returned to Liao again.
Invaded and devastated.
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Goyokguk
Just before the Liao Dynasty collapsed, they rebelled.
failed.
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Great Balhae
The last recorded record of the Balhae Buchuk Movement
About 200 years after the fall of Balhae,
When the Liao Dynasty fell, they rebelled.
In the golden age
Defeated and annexed.
It’s a big disaster
[The lineage of Han Minjoo in the Manchurian region is completely cut off.
Jiji I.
Jeong Ahn-guk