An area in Northern China , Manchuria is composed of three provinces : Heilungkiang, Kirin, Liaoning, and the eastern part of the Inner Mongolian area. The province is about 600,000 square miles or 1/6 the total area of China. Manchuria is China's chief industrial area. It is rich in mineral resources as well as farmland.
Manchuria is one of the oldest areas inhabited by human beings in east asia. Archeologists have found remains that date back to the Paleolithic era. Manchurian history has been recorded at about 1000 BC. Southern Manchuria was integrated into the Chinese empire at about the 3rd century BC. Aggressive tribes from Manchuria have invaded Northern China and expanded their rule into China Proper.