China is an old, beautiful and mysterious Eastern country that can not be ignored in the world. China, one of the four oldest civilizations in the world, has a written history of 4,000 years. What a rich culture and historical heritage it boasts is that it is ancient inventor of compass, paper, gunpowder and printing, and that it has the Great Wall, the Grand Canal and the Karez irrigation systems – three great ancient engineering projects built 2,000 years ago. China has gone through a long history of primitive society, slavery society, feudal society and semi-feudal semi-colonial society and the present socialist society.