Start with the question
How can a community remain connected across the sea while becoming part of a Chinese port city?
John W. Chaffee studies Muslim communities in southeastern Chinese ports as a trade diaspora whose identity changed over time. His three-part chronology moves from tribute-centred exchange, through expanding Song maritime trade and local integration, to the different opportunities and pressures of Mongol rule.
Quanzhou is central to the later phases. Wealthy Muslim families could participate in local society and official life while maintaining religious and commercial links across maritime Asia. The useful idea is not a choice between 'foreign' and 'Chinese', but a layered identity produced through both connection and settlement.