Hoi An is located on a patch of land, located downstream of the
Thu Bồn River, some 28 km south of what would eventually become the city of
Da Nang. Under Cham rule, this region was transformed into one of the kingdom's key and essential foreign trading ports for goods and services, once serving as a stop and trading post on the maritime Silk Road. Starting from around the end of the 15th century, the area started to receive an influx of
Vietnamese residents, allowing the area to fall into the control of the Vietnamese
Nguyễn clan. Later, by the start of the 17th century, the town would start to experience a steady flow of Chinese and Japanese residents arriving to the town to immigrate and trade, which helped to create a series of diverse neighborhoods and streets inside the old town itself. This level of immigration caused the port and city of Hoi An to experience extreme economic growth, becoming one of the busiest trading posts in Southeast Asia, a status of which it would hold for the next couple of centuries. However, during the 19th century, the port of Hoi An started to slowly stagnate and decline, to make way for the newer city of
Da Nang to develop its sea and trading posts. However, the stagnation and decline of the old trading posts' activities has also led to the entire old port town itself being remarkably preserved over the centuries, mainly due to its stagnation and abandonment, along with the lack of economic incentives in the town. == Architecture ==