What's the story of Tanabata?

Cowherd and Weaver Girl, a well-known folk love story of Han nationality in ancient China, is also one of the four major folk tales in China (the other three are Liang Zhu, Meng Jiangnu crying on the Great Wall and the legend of the white snake), which comes from the star names of Cowherd and Vega. Legend has it that the granddaughter Weaver of the ancient Emperor of Heaven is very good at weaving, weaving rosy clouds for the sky every day. She hated this boring life, so she secretly went down to earth, married a cowherd in Hexi privately, and lived a life of farming and weaving. This angered the Emperor of Heaven, took the Weaver Girl back to the Heavenly Palace, and ordered them to separate, allowing them to meet only once a year on the seventh day of the seventh lunar month. Their unswerving love touched magpies, and countless magpies flew in and built a magpie bridge across the Tianhe River with their bodies, so that the cowherd and the weaver girl could meet on the Tianhe River. [ 1][2]

Nineteen Ancient Poems: "Far away, Altair, Hehan girl. Skillful hands, make a loom. There is no chapter all day, and tears are pouring down. What's the difference between a clear river and a shallow one? Ying Ying is easy to water, and his pulse is silent. " "Cowherd and Weaver Girl" originated from people's worship of natural phenomena and later developed into Valentine's Day in China. Every festival, ancient women would make a wish to Vega and Altair in the sky, hoping that they would have a wise mind, dexterous hands and a beautiful marriage.