The name "Wuhan" came from the city's historical origin from the conglomeration of Wuchang, Hankou and Hanyang, which are collectively known as the "Three Towns of Wuhan" (武汉三镇). It lies in the eastern Jianghan Plain, on the confluence of the Yangtze River and its largest tributary, the Han River, and is known as "China's Thoroughfare" (九省通衢).[1]