When did the legend of Nu Wa's creation begin?

Nu Wa is the goddess of creation in ancient China mythology. Legend has it that Nu Wa created human beings and human society by imitating herself with clay. It also established a marriage system for human beings, so that young men and women can marry each other and reproduce, so it is called the goddess of marriage. Is the great mother of the Chinese nation, who kindly created us and bravely took care of us from natural disasters. It is the creator god and ancestor god widely worshipped by people for a long time. Two short articles about Nu Wa in the historical book Custom Tong (written by Ying Shao) 1. It is said that the heavens and the earth have opened and there is no one, so Nu Wa (it is said that a snake with a human face created human beings) is a human being. The audience is sitting (busy with work), unable to supply (there is no extra electricity to supply demand), just pulling (pulling, pulling) the rope in the mud for people. Therefore, the rich are all loess people; The poor lead the way. According to folklore, at the beginning of the creation of heaven and earth, there were no human beings on the earth. It was Nu Wa who kneaded the loess into a ball and made people. She is busy and tired, and despite her best efforts, she still can't keep up with the supply. So she picked up the rope and threw it into the mud. When she lifted the rope and threw it out, the mud fell to the ground and became a person. Later generations said that the rich were made of loess by Nu Wa, and the poor were just made of rope dipped in mud and scattered on the ground by Nu Wa. 2, the original: Nuwa Blessing Shrine is a female media because of marriage. Nu Wa prayed in the shrine and asked God to appoint her as matchmaker. So Nuwa arranged for men and women to get married.