Family Name: The surname 蔡 (Cài) has its origins in the Zhou Dynasty (1046–256 BCE). It is derived from the state of Cai, established by Shudu, a brother of King Wu of Zhou. After the state of Cai was annexed by the state of Chu, the descendants adopted the name of their former state as their surname. The surname 蔡 is also associated with historical figures such as Cai Lun, the inventor of paper during the Eastern Han Dynasty.
Given Name: The character 'Yang' signifies the center, embodying core significance.