Offering a sacrifice to Heaven was the supreme grand ceremony, but this ceremony didn't involve a specified system in the West-Chou Dynasty, such as "set up the later of Heaven in the south suburbs of the capital". It was not until in the Qin Period when the Yong Four-Zhi were established that the sacrifice to heaven gradually systematized. The four-Zhi in the Qin Dynasty had a great influence on the system of the sacrifice architecture in the Han Dynasty. The architecture sacrificing to Heaven in the early days of the Han Dynasty composed of the five-emperor temples. The five emperor alters, the Tai-Yi Temple. The sacrifice system changed greatly during the cheng-emperor period. The sacrifice system formulated by Wangmang laid a foundation of the altar to Heaven.