Chang an in ancient history is the current one?

It is today's Xi'an, the old name of Xi'an, the capital of ancient China in its heyday (strong Han and Tang Dynasty), which means "long-term peace and stability". Chang'an, Cairo, Athens and Rome are known as the "four ancient capitals of the world".

Emperor Gao of the Han Dynasty in five years (202 B.C.) set the county, seven years, the capital here. Since then, the Western Han Dynasty, the New Dynasty, the Eastern Han Dynasty (the beginning of Emperor Xian), the Western Jin Dynasty (Emperor Jin Dynasty), the former Zhao, the former Qin, the Later Qin, the Western Wei, the Northern Zhou, the Sui, and the Tang Dynasty have all been all capitalized here, and the Eastern Han Dynasty, the Three Kingdoms, the Wei Dynasty, and the Five Dynasties and the Tang Dynasty have all taken this as their accompanying capital. At the end of the Western Han Dynasty, the green forest, red eyebrows, and the peasant rebel army led by Huangchao at the end of the Tang Dynasty also built the capital here.

In the Han and Tang dynasties, it was also a center for foreign economic and cultural exchanges. In the Western Han Dynasty, there were residential areas specially set up for outsiders in the city, and the outsiders living in the Tang Dynasty came from all over Asia, as far as Persia and Dashi, and there were tens of thousands of them.

There are two ancient cities: Hancheng was built in the time of Emperor Hui, in the northwest of present-day Xi'an City, 25 kilometers around; Sui City was built in the time of Emperor Wen, called Daxing City, including the present Xi'an City and the east, south and west of the city, around 36 kilometers.

At the end of the Tang Dynasty, after Tianyou moved the capital to Luoyang in the first year (904 AD), because most of the houses in the city were demolished, a new city was rebuilt in the north of the old city, which is now Xi'an City. After the liberation, archaeological excavations were carried out on the ruins of the two cities of Han and Sui.

Chang'an is now the city of Xi'an, Shaanxi Province.

Chang'an is the first capital city in history to be called "Beijing", and is known as the world's four ancient civilizations along with Athens, Rome and Cairo, ranking first among the four ancient capitals in China. It is the eastern starting point of the Silk Road and the starting point of the Sui-Tang Grand Canal, the birthplace of Chinese civilization, and is known as the Natural History Museum.

Chang'an is now the city of Xi'an, Shaanxi Province. Chang'an culture has a profound influence, because the Zhou, Qin, Han, Sui and Tang dynasties that built the capital of Chang'an were the most powerful and civilized times in ancient China, so after the Tang Dynasty, although Chang'an is no longer the national capital, the word "Chang'an" has become another name for the national capital.

Since the opening of the Silk Road, "Chang'an" has become the center of oriental civilization. During the Sui Dynasty, Emperor Wen of Sui built a new capital (east of Chang'an County) in "Daxing County" and named it "Daxing City". During the Tang Dynasty, Chang'an County and Daxing County were redivided by the central axis, and renamed "Daxing County"."For Wannian County, it means "Wannian Chang'an" and restores the name of "Chang'an".

Topography:

The geological structure of Xi'an City is composed of two major units: the fold belt of the trans-Qinling trough and the North China Platform. Since the late Tertiary period about 3 million years ago, the neotectonic movement of the Qinling trough fold belt south of the fault has been extremely active, and the mountain has risen violently from north to south, creating the Qinling Mountains.

At the same time, the Weihe River fault, which belongs to the North China Platform north of the Great Fault, continued to subside, forming the Weihe Plain under the combined action of aeolian loess cover and Weihe alluvium.

The difference in altitude in Xi'an is the highest among all cities in the country. The Qinling Mountains, which are majestic and steep, and the Weihe Plain, which stretches out and is flat and fertile, have a clear boundary, constituting the main body of Xi'an's landform. The main ridge of the Qinling Mountains is 2,000 meters above sea level and 2,800 meters above sea level, of which the peak of Taibai Mountain at the southwest end is 3,867 meters above sea level, which is the highest peak in the middle of the continent.

The Weihe Plain is 400 meters above sea level and 700 meters above sea level, of which the lowest part of the Weihe River bed at the northeast end is 345 meters above sea level. The urban area of Xi'an is built on the secondary terraces of the Weihe Plain.

The above content reference: Encyclopedia - Chang'an.

In ancient times, Luoyang was not called Chang'an. Chang'an is the old name of Xi'an.

In ancient times, Luoyang used to be known as Luoyi, Luoyi, Chengzhou, Luoyang, Dongdu, Tokyo, Zhongjing, Shendu, Jingluo, Luojing, and Xijing. Luoyang, located in the central region of China, is the main birthplace of the Chinese nation, the origin of Chinese civilization, and has been considered by the Chinese ancestors to be among the world. One of the four ancient capitals of China, it is known as the ancient capital of the Nine Dynasties because of the number of times it has been built so many times that it cannot be counted.

In ancient Luoyang, there were 13 dynasties as the national capital, namely Xia, Shang, Western Zhou, Eastern Zhou, Eastern Han, Cao Wei, Western Jin, Northern Wei, Sui, Tang, Later Liang, Later Tang and Later Jin.

Chang'an Introduction:

Chang'an, which is now Xi'an, was once known as the Western Capital, Xijing, Daxing City, Jingzhao City, Fengyuan City, etc., is one of the world's four ancient capitals, is the most influential capital in Chinese history, is the cradle of the Chinese nation, and is one of the starting points of the Silk Road. Wei, Jing, Feng, waterlogging, Wei, 滈, Chan, Ba eight water surrounding, south by Qinling, north pillow Weishui, mountains and rivers shape the crown in the world.

Located in the northern suburbs of Xi'an, Yangguanzhai has the earliest urban prototype in the world and is known as the world's first city. Since the letter and history, the capital built here are: Western Zhou, Qin, Western Han, Xin, Eastern Han (late years), Western Jin (last years), former Zhao, former Qin, Later Qin, Western Wei, Northern Zhou, Sui, Tang and other thirteen dynasties, of which Zhou (Western Zhou), Qin and Han (Western Han) Tang reached the peak of Chinese feudal society.

Sian. Xi'an, known as "Chang'an" in ancient times, is one of the world's four famous ancient civilizations, ranking first among the ancient capitals of China, the capital city with the longest construction time, the most dynasties and the greatest influence in Chinese history, and is the cradle of the Chinese nation, the birthplace of Chinese civilization and the representative of Chinese culture.

Xi'an is one of the important birthplaces of Chinese civilization and the Chinese nation. Chang'an has been the capital for many times, and it has successively built its capital here with 13 dynasties of Western Zhou, Qin, Western Han, Xinmang, Eastern Han, Western Jin, Qianzhao, Qianqin, Later Qin, Western Wei, Northern Zhou, Sui and Tang. Feng Ho Capital, Qin Afang Palace, Terracotta Warriors, Han Weiyang Palace, Changle Palace, Sui Daxing City, Tang Daming Palace, Xingqing Palace, etc. outline the "Chang'an complex".

Today, Xi'an is the capital of Shaanxi Province, one of China's seven regional central cities, Asia's knowledge technology innovation center, the largest central city in the Chinese section of the New Eurasian Land Bridge and the Yellow River Basin, the manufacturing base of China's large aircraft, and the largest and most important scientific research, higher education, national defense science and technology industry and high-tech industrial base in the central and western regions of China.

Ancient Chang'an is now Xi'an. Xi'an is referred to as "pickaxe", known as Chang'an and Haojing in ancient times, is a prefecture-level city under the jurisdiction of Shaanxi Province, the provincial capital refers to Zhizhi, etc., is located in the middle of the Guanzhong Plain, bordering the Wei River in the north, and only eliminating the Qinling Mountains in the south, and there have been more than 10 dynasties in history to build their capitals here.

Xi'an is a "World Historic City" identified by UNESCO in 1981, one of the important birthplaces of Chinese civilization and the Chinese nation, and the starting point of the Silk Road.

Xi'an is one of the four ancient capitals in the world, and is one of the capitals with the most capitals, the longest time and the greatest influence in Chinese history.

The famous scenic spots in Xi'an include the Terracotta Warriors, the Bell and Drum Tower, the Big Wild Goose Pagoda, the Small Wild Goose Pagoda, the Qinling Mountains, the Daming Palace, the Weiyang Palace and so on.