Cao Jian Millennium ancient pagoda tree village, Liu Yong's ancestral home.

In front of Jiulong Mountain, the west side of Fenghuang Mountain is a barren plain. It is surrounded by mountains on three sides, with towering old trees, bushes, weeds and gurgling streams. There is an ancient pagoda tree on the south side of Pingchuan, which is intertwined and has dense branches and leaves. According to legend, this kind of tree was wild in the Northern Song Dynasty, and it was Taoism. In a year's time, Tie Guai Li and Lv Dongbin traveled around this place, then climbed the tree and looked into the distance. I saw it surrounded by mountains on three sides, and nine Yuxi was like nine Yuxi. Meet at the west side of the big pagoda tree, forming a wide river, which flows eastward around the south side of the ancient pagoda tree, adding a lot of beauty to this wilderness. The two immortals praised it, saying it was a treasure trove of geomantic omen. If anyone is buried here in the future, the next generation will not be a prince, and the group will be determined. Lv Dongbin said, "Why don't we go up to the tree to cool off?" Then they jumped into the tree and sat on a pillar of the big pagoda tree extending to the southeast, drinking and having fun. Tie Guai Li's iron crutch was nowhere to be placed, so he had to put it on a pole extending to the northwest. After drinking, he left half a bowl of wine. Tie Guai Li spilled wine on a pole extending to the northeast, and saw a white bubble more than ten feet long on the pole where the wine was stained. Erxian lost interest and jumped off the ancient pagoda and left. Many years later, the branch where Erxian sat drinking formed an arch in the middle, like an arched wooden bridge, more than 30 meters long. Later people called it "Xianren Bridge". However, the branches with iron crutches left a hole, which was eroded by wind and rain, leaving a trough-shaped hole with a length of 0.6 meters, a width of 0.3 meters and a depth of 0.2 meters, which was later called the "horse drinking trough". Even more spectacular, a 10-foot-long mushroom grows on a branch extending to the northeast, where Tie Guai Li spilled wine. It circled around the branches and climbed on them like a dragon, which was later called "Panlong Branch".

In the third year of Hongwu in Ming Dynasty, Liu's ancestors moved to the Quechao in Rizhao (Guhuainan 1 km). During the Tianshun period, Quechao Village was burned down. At that time, Liu's ancestors died and were buried in Beiling, Dongwangzhuang, Tianjia.

During the Chenghua period, Liu Chengyuan, five brothers of the Liu family, moved to Anqiu, and led three younger brothers, Liu Jieyuan, Liu Genyuan, to the north of the big pagoda tree, and built a small house to live in. Later, Liu Jieyuan moved to Qian Qiu, and Liu and Liu Genyuan moved to Juxian.

Philip Burkart Gong cultivated land here and thrived. Because it is surrounded by mountains on three sides, the middle ground is overgrown with weeds and the stream is gurgling, so it is named Cao Jiancun. Philip Burkart gave birth to eight sons: Fu, Lu, Shou, Shi, Shu, Zhong and Hou. Fu and Lu moved to Liujiagou together. In order to avoid bandits, Fu Gong and his third moved to Diaogezhuang, Zhucheng, Shou Gong moved to Zhuangzi, Shi Gong moved to Dazhuzhou, moved to Xiliujiagou, Juxian County, Zhong Gong moved to Linyi Liu Zhuang, later moved to Liujiadian, Yishui, and Wei Gong stayed in the village. After Liu Siyuan died, he was buried seven meters northwest of the old pagoda tree.

With the popularity under the ancient locust tree, it grows sturdily and flourishes. This ancient pagoda tree is more than 50 meters high and four times as thick. Its branches are more than 30 meters long and 60 centimeters in diameter. Occasionally, one year, it did not send new branches and leaves, and the villagers thought it was dead. However, the next year, it grew new branches and leaves, which made the villagers feel magical and was honored as a holy tree. Some people, old and young, came to burn incense and kowtow under the old locust tree, praying that the old locust tree would show its great power, eliminate disasters and ensure peace. In case of drought, locust plague or plague, people always give the old pagoda tree red color, burn incense to pay homage, set off firecrackers, and pray for the holy tree to bless the world and avoid disasters and ensure peace.

During the Xianfeng period, Liu Yong's descendants built a Liu ancestral hall 40 meters northeast of the old pagoda tree.

Unfortunately, this Millennium-old pagoda tree was cut down in the autumn of 1946.