History of Zhangzhou
During the early Qing, Zhangzhou was the primary Fujianese port trading with Portuguese Macao and Spanish Manila. For a time, the Portuguese maintained a factory in the city.
During the late Qing, Zhangzhou remained a center of silk, brick, and sugar production with about a million people and extensive internal and maritime trade. Its city wall had a circumference of about 4.5 miles (7.2 km) but included a good deal of open ground and farmland. Its streets were paved with granite but badly maintained. The 800-foot (240 m) bridge across the Jiulong River consisted of wooden planks laid between 25 piles of stones at roughly equal intervals. The port of Xiamen in an island at the mouth of the Jiulong principally functioned as a trading center for the produce and wares of Zhangzhou and its hinterland; both suffered economically when Indian tea plantations cratered demand for Fujianese tea in the late 19th century.
The old city of Zhangzhou (now Xiangcheng District) was occupied in April and May 1932 by a column of Communist guerrillas under Mao Zedong. Due to the presence of Western gunboats in Xiamen Bay, arms shipments from the Soviet Union were unable to get up the Jiulong River to Mao’s forces and the main Communist bases. Discovering this, Mao retreated from the city, according to some accounts with a substantial amount of loot taken from its residents.
Source From: https://en.wikipedia.org/wiki/Zhangzhou#History