The Bo fortress of Lingxiao (凌霄城) on Bowangshan Mountain in Xingwen County were the last hold out in China against the Mongol conquest.
[4][5][6][7] Hanging coffins carved from a single log and bronze drums are widely found in the areas once inhabited by Bo people.
[1][8][9] The Lachi people of Vietnam and China may be descended from the Bo, based on the archaic exonym Labo (喇僰) in Chinese records.
According to their own records, the Ku people's ancestors had migrated from Yibin, Sichuan province a few centuries ago in order to escape wars.
Languages spoken by the Bo people(s) may have included: Words of Bo origin that still exist in the local dialect (tuhua 土话) of Gong County, Sichuan include máng máng 牤牤 or alternatively niōng niōng ('pig 猪'), and gà gà 尬尬 ('meat 肉').