What is "chuanqing"

The Chuanqing people are a Han Chinese subgroup. They are said to be descended from Han Chinese soldiers who were sent to Guizhou area in the eighth and ninth centuries to quell Miao rebellions. The Chuanqings view themselves as a distinct people group. Most of them live in Anshun area of Guizhou province. Other locals call the Chuanqings "Da Jiao Ban" (Big Foot) or "Da Xiuzi" (Big Sleeves).