Which city, historically called Canton, is linked to tenth-century teahouses in dim sum history?

Guangzhou, historically called Canton, is linked to tenth-century teahouses in dim sum history.\n\nDim sum histories describe Guangzhou as experiencing increased commercial travel in the tenth century. Travelers frequented teahouses there for tea accompanied by small portions of food, a practice associated with yum cha and regarded as an early foundation of modern dim sum culture.\n\nThe city’s location and commercial importance helped this tradition grow. Guangzhou was a major southern Chinese port with busy trade, travelers and access to varied local ingredients. Teahouses became places not only to eat and drink, but also to socialize and conduct business. Over time, their snack offerings expanded and became more elaborate.\n\nThe name “Canton” is the historical English name associated with Guangzhou, so the two choices identify the same city rather than separate alternatives. The tenth-century reference describes an early teahouse tradition, not the fully developed restaurant format familiar today. Cantonese dim sum culture expanded especially rapidly in Guangzhou during the nineteenth century.