What are the cultural legends of the altar in Moshan Scenic Area of East Lake in Wuhan? How many years have it been built?

Liu Bei set up an altar to worship heaven in Moshan, East Lake, which is recorded in Historical Records of the Three Dynasties. "Records of the Unification of Daming" (Volume 59) records: "The Tiantai in the suburbs is ten miles east of Fucheng, now called Moore. It is said that Emperor Zhaolie of Han Dynasty sacrificed to heaven here." The Great Unity and Clear Records, which was rebuilt during Jiaqing years, records: "The Temple of Heaven in the suburbs is located in Moore Mountain, 15 miles east of Jiangxia County. According to legend, Emperor Zhao Lie of Han Dynasty sacrificed to heaven here. " "Jiangxia County Records" records: "The former site of the suburban rooftop is in Moore Mountain. According to legend, Han Zhaolie sacrificed to heaven." "Hubei Tongzhi" (Volume 15) also records that "the Temple of Heaven is in the suburbs, located in Mount Moore, fifteen miles east of the county seat. According to legend, Emperor Zhao Lie of Han Dynasty sacrificed to heaven here. " Emperor Hanzhao is Liu Bei.

There is also a folk story about Liu Bei praying in Moshan. According to legend, Battle of Red Cliffs and Liu Bei captured Jingzhou. Sun Quan and Zhou Yu want to wait for an opportunity to get it back. In the 13th year of Jian 'an in the Eastern Han Dynasty, Mrs. Liu Bei (Mrs. Gan) died. Sun Quan promised to marry his sister and wanted to lure Liu Bei to Nanxiu (now Zhenjiang) to attack the city. Under Zhuge Liang's plan, Liu Bei played along and set sail south. When the ship arrived in Wuchang, I felt uneasy. Zhao Yun and others urged, "Master, the scenery in the south of the Yangtze River is beautiful. Let's go ashore and ride horses for fun. " So Liu Bei and his party rode to today's East Lake and watched flowers and scenery along the way. I see islands dotted with lakes and beautiful scenery. Wild ducks and geese fly out from time to time among the swaying reeds by the lake. Liu Bei was very relaxed and happy and came to the foot of a mountain. Unexpectedly, a strange wind suddenly made Liu Bei's horse lose its front hoof and his hat disappeared. Liu Bei was frightened, climbed to the top of the mountain and set up a platform at Dongshantou to worship heaven. The sky cleared up after the ceremony. Liu Bei continued to travel eastward and arrived in Wu Dong. Wu Guotai took a fancy to his heroic posture and forced Sun Quan to really marry his sister. This is the well-known story of "Zhou Lang seeks the world, loses his wife and loses his soldiers". Later, Liu Bei often praised that thanks to setting up a platform to worship heaven in Moshan, East Lake, when he returned to Shu, he specially came to Moshan with his newly-married grandson to thank the gods.