It is one of the leading provinces in finance, education, technology and tourism, with its capital in Nanjing.
Jiangsu is the third smallest, but the fifth most populous and the most densely populated of the 23 provinces of the People's Republic of China.
It is widely regarded as China's most developed province measured by its Human Development Index (HDI).
However, its development is not evenly distributed, with the Wu-speaking southern part of the province being significantly more well-off than its Mandarin-speaking north, which sometimes causes tensions between northern and southern residents.), an ancient ethnic group.
The state of Wu was subjugated in 473 BC by the state of Yue, another state that had emerged to the south in modern-day Zhejiang province.