Henan is a province of the People's Republic of China, located in the central part of the country. Its one-character abbreviation is yu, named after Yuzhou Province , a Han Dynasty province (zhou) that included parts of Henan. The name Henan means "south of the Yellow River". With nearly 100 million people, Henan is the most populous province of China by residency. It borders Hebei to the north, Shandong to the northeast, Anhui to the southeast, Hubei to the south, Shaanxi to the west, and Shanxi to the northwest. Henan is traditionally regarded as the cradle of Chinese civilization. Northern Henan, along the Yellow River, was the core area of ancient China for at least the first half of Chinese history. The two cities of Luoyang and Kaifeng each served as the capital city of a long list of dynasties.