history
From 柳永《望海潮·东南形胜》 (Liu Yong, Northern Song, ~1003-1010), a long cí describing Hangzhou (钱塘 = the old name, after the Qiantang River): 东南形胜,三吴都会,钱塘自古繁华。烟柳画桥,风帘翠幕,参差十万人家 (The southeast's finest terrain, the metropolis of the Three Wu - Qiantang has flourished from of old. Mist-wrapped willows, painted bridges, gauze curtains and green awnings, a hundred thousand households rank on rank). A legend claims the Jin ruler Wanyan Liang read this cí and was inspired to invade the Southern Song to possess Hangzhou.