(1) the earliest ancient capital of China.

The capital of China in its heyday (the Han Dynasty was strong and the Tang Dynasty was prosperous), which means "long-term stability". Chang 'an, Cairo, Athens and Rome are also called "the four ancient capitals of the world".

In the fifth year (202 BC), Gaodi county was established, and its capital was established here seven years later. Since then, the Western Han Dynasty, the Eastern Han Dynasty (early Xian Di), the Western Jin Dynasty (Jin Dynasty), the former Zhao Dynasty, the former Qin Dynasty, the later Qin Dynasty, the Western Wei Dynasty, the Northern Zhou Dynasty, the Sui Dynasty, the Tang Dynasty, etc. all used it as their capital. At the end of the Western Han Dynasty, the green forest was red-browed, and at the end of the Tang Dynasty, the peasant uprising army led by Huang Chao also built its capital here. The Han and Tang dynasties were also the center of foreign economic and cultural exchanges. In the Western Han Dynasty, there were residential areas specially designed for foreigners in the city. There are tens of thousands of foreigners living in the Tang Dynasty from all over Asia, as far away as Persia and big food.

There are two old cities: when Huidi built Seoul, it was 25 kilometers northwest of Xi 'an and Fiona Fang today; When Emperor Wendi built the city in Sui Dynasty, it was named Daxing City, including Ancheng, East, South and West Districts, and Fiona Fang, 36 kilometers away.

After Tang Zhaozong moved to Luoyang in the first year of God Blessing (AD 904), a new city was built in the north of the old city, which is now Xi 'an City, because most of the houses in the city were demolished. After liberation, archaeological excavations were carried out on the ruins of Han and Sui cities.

(The picture shows the recovery of Tang Changan)

(2) The Western Han Dynasty, Sui Dynasty and Tang Dynasty all established their capitals in Chang 'an, so it was often called Chang 'an after the Tang Dynasty. It doesn't necessarily mean the real Chang 'an. In Li Bai's poem Jinling, he wrote: "The southern flower day of the Jin Dynasty was here in the old Chang 'an. "After the southern crossing of the Jin Dynasty, Jiankang (now Nanjing, Jiangsu Province) was the capital, but Li Bai still used Chang 'an to refer to Jiankang.

Changan has a long history. It has been more than 2200 years since the establishment of the county in the fifth year of the Western Han Dynasty. It was once the capital of Zhou, Qin, Han and Tang Dynasties.

In September 2002, the county was divided into districts and became a new urban area in Xi 'an. It now administers 15 townships, 10 sub-district offices, 67/kloc-0 administrative villages and 2/kloc-0 neighborhood committees, with a total population of 925,700.

Chang 'an has a profound cultural heritage, and there are many scenic spots and historical sites in the area. There are 6 national key cultural relics protection units, 7 provincial key cultural relics protection units and 20 district (county) key cultural relics protection units. Keshengzhuang New Stone Relics, Cangjie Word-making Platform, Fenghao Western Zhou Chemakeng, Qin Epang Palace Relics, Han Ling Du, Fan Chuan Old Road and other cultural relics abound; Xingjiao Temple, Huayan Temple, Ji Xiang Temple and Ye Jing Temple have a long history. The northern foot of Qinling Mountain, which stretches for hundreds of miles, is green and magical, with lush vegetation. It is the water conservation land and ecological barrier of Xi 'an. Qinghua Mountain, Nanwutai, Jiawutai Scenic Area, Cuihua Mountain and other natural landscapes are magnificent. Chang 'an is called the "back garden" of Xi 'an.