Take for example "clan temples," which are maintained by those of the same family name. Then there are "surname associations," which are social organizations. Detailed family genealogies "are maintained, recording the family history. All of these things are closely related to the existence of surnames.
像是宗祠，就是同姓的祖廟；宗親會，是同姓人士組成的社會團體；家譜，是記載這一姓的家族歷史，都和姓氏密切相關。