(2001 est. pop. 1.3 billion). China is a complex civilization with a history spanning several millennia. Since the success of a Communist-led revolution in 1949, China has been known as the People's Republic of China (PRC). For the most part, its borders have been unchanged since then. However, there is some disputed territory on the high Himalayan borders between Tibet, which is under PRC control, and India. In a remarkably peaceful transition, Hong Kong (a port on China's southern coast) returned to PRC sovereignty from British colonial control in 1997, and nearby Macao from Portuguese colonial control in 1999. The.....