How did outside influences shape china during the tang and song dynasties

Xiongnu, Buddhism, Mongols ended song dynasty Trade in general silk road. Underlying these cultural and political achievements was an “economic revolution” that made Song dynasty China “by far the richest, most skilled, and most populous country on earth.” The most obvious sign of China’s prosperity was its rapid growth in population, which jumped from about 50 million or 60 million during the Tang dynasty to 120 million by 1200.