唐太宗贞观之世拓土开边,声震中亚、西亚及南海诸国。至唐玄宗开元之治,国威大振亦足媲美贞观,故唐代乃中国古代最繁荣强盛的一个皇朝。贞观、开元以后,外国人对中国的一切均冠以“唐”字相称:称中国人为“唐人”,称中国字为“唐字”,称中国本土为“唐山”。这种情形至今仍无多 Tang Taizong’s world of magnificence opened up the border, sounding the countries of Central Asia, West Asia and the South China Sea. To the Emperor Xuanzong of the Tang Dynasty, Guowei was also full of beauty and esteem. Therefore, the Tang Dynasty was one of the most prosperous and powerful dynasties in ancient China. After Zhenguan and Kaiyuan, the foreigners all regarded China as “Tang”, saying that the Chinese are “Tang”, the Chinese word is “Tang”, and the Chinese mainland is “Tangshan”. This situation is still not much