Chinatowns in Asia are widespread with a large concentration of overseas Chinese in East Asia and Southeast Asia and ethnic Chinese whose ancestors came from southern China - particularly the provinces of Guangdong, Fujian, and Hainan - and settled in countries such as Cambodia, East Timor, Indonesia, India, Laos, Malaysia, Myanmar, the Philippines, Singapore, Thailand, Vietnam, Japan and Korea centuries ago—starting as early as the Tang Dynasty, but mostly notably in the 17th through the 19th centuries (during the reign of the Qing Dynasty), and well into the 20th century. Today the Chinese diaspora in Asia is largely concentrated in Southeast Asia however the legacy of the once widespread overseas Chinese communities in Asia is evident in the many Chinatowns that are found across East, South and Southeast Asia.