五口通商 wǔ kǒu tōngshāng

wǔ kǒu tōngshāng set phrase the five treaty ports
Domain: History 历史 , Subdomain: China
Notes: Forced on Qing China by the 1842 treaty of Nanjing 南京条约 that concluded the First Opium War, namely: Guangzhou 广州, Fuzhou 福州, Ningbo 宁波, Xiamen 厦门 and Shanghai 上海 (CC-CEDICT '五口通商')