In clan society, in order to distinguish a person's origin, he has four components: surname, surname, first name and word. Such as Confucius, surname Zi, name Kong, and. Later, it gradually evolved into a surname and a first name, with only two parts. In order to distinguish where it comes from. Who are the ancestors? There is a hall number. Jiao, a native of Qiaoxian County, Cao Shi, originally from Bozhou, Anhui Province! As long as it comes to Qiaoguo County, then this person's surname is Cao, and his ancestors are from Bozhou, Anhui.