Luoyang, the Eastern Capital.

Luoyang, also known as Chengzhou, Shendu, Luoyi, and Luojing, is a prefecture-level city in Henan Province, a world cultural city, one of the first national historical and cultural cities, a national regional central city, a sub-central city in the Central Plains urban agglomeration, an important node city of the Belt and Road Initiative, a third-tier city, and a famous tourist city approved by the State Council as a sub-central city in Henan Province. Luoyang is located in the center of the world and is named after its location on the sunny side of the Luo River. The inscription on the bronze ware of the Western Zhou Dynasty "He Zun" called the Luoyang Plain "China". It has a history of more than 5,000 years of civilization, more than 4,000 years of urban history, and more than 1,500 years of capital construction history. It is one of the birthplaces of Chinese civilization, the eastern starting point of the Silk Road, and the center of the Grand Canal of the Sui and Tang Dynasties. Historically, 13 dynasties have built their capitals here, making it the earliest, longest-lasting, and most dynastic city in China. It is one of the four holy cities in the world. Taoism originated here, Confucianism flourished here, and Buddhism was first introduced here. Luoyang has five major capital sites, including the Erlitou Site, the Yanshi Shangcheng Site, the Eastern Zhou Royal City Site, the Han and Wei Luoyang City Site, and the Sui and Tang Luoyang City Site, as well as the Longmen Grottoes, the Grand Canal of China, and the Silk Road. There are 3 items and 6 places of world cultural heritage. For thousands of years, Luoyang has always been the capital or an important city of China. Walking all the way from the north of Henan, we will feel the ancient people's scientific understanding of city site selection. The first is to have a clean and sanitary water source. The two rivers, Yi and Luo, have done it. Although they belong to the Yellow River Basin, they have not been polluted at all. The high-quality water source from the Qinling Mountains ensures the safety and sanitation of water use in large cities. Secondly, ancient Henan was often ravaged by seasonal floods in the Yellow River, and a relatively gentle highland was needed. Luoyang has this. Even the emperor of the Northern Song Dynasty in Kaifeng had to arrange his mausoleum in Gongyi County, Luoyang. Third, Luoyang is located at the junction of the north and south climate zones, and the climate is pleasant. In general, Luoyang is a strategically selected geomantic treasure in the Yellow River Basin in Henan. Born in Suzhou and Hangzhou, buried in Mangshan, there is a public opinion. The site selection of the capital of the Xia Dynasty was in line with the actual situation in the Yellow River Basin of the Central Plains at that time. Xia Yu's water control, mainly in the Yellow River Basin, should also build a base camp in a relatively safe place. Luoyang seems to be the only choice in the Yellow River Basin of the Central Plains. I believe there will be archaeological evidence in the future. Now the Xiaolangdi Water Control Hub is also located in Luoyang. Is it just a coincidence? The struggle between the late Xia Dynasty and the Shang Dynasty is more like an internal fight between the eastern and western people in the Yellow River Basin. So much so that later Shang people always built cities in the eastern part of Henan. The Shang king or his courtiers hardly went to the west of Henan. Interesting.