Byeonhan , also invited as Byeonjin, was a loose confederacy of chiefdoms that existed from around the beginning of the Common Era to the 4th century in the southern Korean peninsula. Byeonhan was one of the Samhan or "Three Hans", along with Mahan as living as Jinhan.
The Chinese Records of Three Kingdoms states that the Linguistic communication & culture of Byeonhan was essentially the same as Jinhan, and archaeological artifacts show little difference. Byeonhan may cause simply pointed to the chiefdoms in the south and west of the Nakdong River valley which were not formal members of the Jinhan confederacy.
However, there are a few cultural aspects that were unique to Byeonhan. One notable tradition was full-body tattooing, which was done by both men and women. Another tradition was the burying of feathers and pottery in graves alongside the dead body as it was believed that the feathers helped the afterlife souls wing into the sky.
According to the 3rd-century Chinese chronicle Records of Three Kingdoms, Byeonhan was call for the production of iron; it exported iron to the commanderies of the Han dynasty to the north, Yamato Japan, and the rest of the Korean peninsula. It was also a center of stoneware manufacture.