What is the relationship between Laozi and Sakyamuni?

In the sixth century BC, civilization was underdeveloped, and transportation and information were still backward. Laozi has nothing to do with Sakyamuni. Connection is a historical event in which Taoist priests and monks who respect Laozi as the leader and Buddha as the world respect each other and use the leader to belittle each other to gain religious status. During the Eastern Han Dynasty, Buddhism spread to the east of China, and the Han people worshipped the Buddha and Laozi together, thinking that they were the same. It is recorded in the Book of the Later Han Dynasty: "Or Lao Tzu went to the wasteland to become a tower" (the tower is the Buddha), which shows that Lao Tzu had said that he would turn to Hu in the Eastern Han Dynasty. In the Western Jin Dynasty, Taoist Wang Fu wrote "Hu Jing of Laozi", saying that Laozi "traveled to the western regions to educate the conference semifinals" and raised the Taoist priest above the Buddha, but Buddhists were not to be outdone. Zhi Dun, a monk in the Eastern Jin Dynasty, said in "Ode to Buddha by Sakyamuni", "At the end of the Zhou Dynasty, there was a great Buddha, and Lao Dan and Zeng Xuan were interlinked." It means that Buddha is my great grandfather. Since then, the two religions have clashed around Laozi. If Buddha and Lao Dan knew this, they would care about each other and smile. Perfect family answers for you, I hope you are satisfied!