 Han China hosted the largest unified population in East Asia, the most literate and urbanized as well as being the most economically developed, as well as the most technologically and culturally advanced civilization in the region at the time.Han China had economic contacts with Persia and the Roman empire, trading silk, minerals, and spices through the famous Silk Road.During the Tang dynasty, China had a multitude of religions that invigorated the many dynamic aspects of Tang cultural and intellectual life, a productive economy that generated substantial tax revenues to fund a competent, credible, and efficient political bureaucracy that administered a vast empire as well as possessing the world's most advanced science and technology at the time.