Introduction to Lingtai County: Lingtai County is located in the eastern part of Gansu Province, bordering Longyuan to the north and Qifeng to the south. Its geographical location is very important and has been a battleground for military strategists since ancient times. Since the Xia and Shang Dynasties, Lingtai County has successively established Mixu Kingdom, Mi Kingdom and other Fang Kingdoms. After the Qin and Han Dynasties, Sanshui, Quaigu, Chaona, Liangyuan and other counties were established. It was not until the first year of Tianbao in the Tang Dynasty that Lingtai was named after the historic site Lingtai. . In the first year of Daye of the Sui Dynasty (AD 605), Lingtai County was established in the southeast of Guquai County based on the meaning of "King Wen conquered the secrets and built Lingtai". The name of Lingtai County appears in the history books for the first time. For thousands of years, the historical allusions of King Wen cutting down secrets and building a spiritual platform to worship heaven have been passed down from generation to generation. The ancient "Lingtai" is known as "the first platform in China to offer sacrifices to heaven" and is famous all over the world.