After that the Tang dynasty was founded. So personally I think the reason why Li Yuan became the emperor of Tang is that he was the King of Tang, which rooted in the very beginning when he inherited the title prince of Tang. read more
The Tang Dynasty, which maintained its rule nearly 300 years, is probably the most well-known dynasty in Chinese history. Successively witnessing three florescences, namely "the Prosperity of Zhenguan", the reign of Empress Wo Zetian and "the Heyday of Kaiyuan" in its period, Tang Empire justifiably became the largest, richest, most sophisticated state in the world at that time. read more
Like the Han dynasty before them, the Tang dynasty was created after the fall of a ruthless leadership. And like the Han before them, the Tang dynasty had their own powerful leader, Emperor Tai-tsung. read more