There were two capitals in the Tang Dynasty, one was Chang 'an (now Xi 'an, Shaanxi) and the other was Luoyang (now Luoyang, Henan). In the early Tang Dynasty, Chang 'an was the capital and Luoyang was the capital. In 6 18, Tang Guogong Li Yuan established the Tang Dynasty, with Chang 'an as its capital. In 657, Tang Gaozong moved the capital to Luoyang.

During the Tang Dynasty, all countries came to Korea with an unprecedented territory. In its heyday, it rose from the Sea of Japan in the east, occupied Annan in the south, reached the Aral Sea in the west, and surpassed Lake Baikal in the north. This is the first unified dynasty in China that refused to repair the Great Wall of Hu since the Qin Dynasty.

Development history

The Sui Dynasty collapsed under the attack of peasant uprising, and Li Yuan, who stayed in Taiyuan, took the opportunity to attack Chang 'an (now Xi 'an, Shaanxi) in 6 17. After the collapse of the Sui Dynasty in 6 18 AD, Li Yuan proclaimed himself emperor in Guanzhong, with Chang 'an as his capital and Tang as his capital.

At the beginning of the Tang Dynasty, the country was strong, developed in economy, science and technology and culture, and it was the most prosperous country in the world at that time. At the end of the Tang Dynasty, land was highly concentrated, politics was corrupt, taxes were heavy, and wars continued and class contradictions intensified. After the Anshi Rebellion in 755, the territory lost more than half. A peasant uprising broke out in 874. In 907, the Tang Dynasty was destroyed by Zhu Wen at the end of the Liang Dynasty. * * * lasted for 20 emperors and ruled for 290 years.