After more than half a century of fighting, there are only seven tribes left in England. In the 5th century AD, the seven Kingdoms formed an informal alliance of Anglo-Saxon tribes in England until 829 AD, when King Egbert of Wessex conquered the remaining six kingdoms on the island of Britain and united England.
Throughout the history of Shaanxi, the same is true. In 230 AD, Ying Zheng began to adopt the strategy of distant friendship and near attack, launched the war of six States, and destroyed Han, Zhao, Wei, Chu, Yan, and Qi successively. In 221 AD, he unified the whole country, established the first unified dynasty in Chinese history, Qin Dynasty, and made Xianyang, Shaanxi the capital.
Ps: During the Tang Dynasty, Chang 'an was established as its capital. Since Europe started late, the Tang Dynasty was already the most glorious era and the economic and cultural center of the whole world, which also made Chang 'an a world-famous international metropolis. Due to the strong national strength and prosperous foreign trade of the Tang Dynasty, the neighboring Turks, Iran, Arabia and other regions maintained good diplomatic relations with the Tang Dynasty. In addition, there was the habit of paying tribute to the Tang Dynasty, and there were frequent cultural exchanges and trade exchanges in Persia.