Henan is the core birthplace of Chinese civilization, and the history of China is constantly evolving around Henan. From Xia, Shang and Zhou Dynasties to Sui, Tang and Song Dynasties, Henan participated in most historical processes in China. Among the eight ancient capitals in China, Zhengzhou, Kaifeng, Luoyang and Anyang are the four ancient capitals in the south, and seven national historical and cultural cities such as Shangqiu and Xunxian are the key cultural relics protection units. Henan province has 358 places, ranking second in the country.