乐浪郡
The "Samguk Sagi" and "History of the Northern Dynasties" state that the original Lelang Commandery which later became the Jinhan confederacy (辰韓) was the origin of Silla. The people claimed they were descendants of Chinese Qin dynasty (秦, also pronounced as "Jin" in Korean) migrants who, fleeing Qin's forced labour policies, moved to the Mahan confederacy, which gave them land to the east. The confederacy was also called Qinhan (秦韓).