Chinas a unitary sovereign state in East Asia and the world's most populous country, with a population of around 1.404 billion.[13] Covering approximately 9,600,000 square kilometers (3,700,000 sq mi), it is the third- or fourth-largest country by total area,[j][19] depending on the source consulted. China also has the most neighbor countries in the world. Governed by the Communist Party of China, .
China emerged as one of the world's earliest civilizations, in the fertile basin of the Yellow River in the North China Plain. For millennia, China's political system was based on hereditary monarchies, or dynasties, beginning with the semi-legendary Xia dynasty in 21st century BCE.