The dates of Valentine's Day in China and Valentine's Day in the West.

Valentine's Day in China is on the seventh day of the seventh lunar month, also known as Qixi.

Western Valentine's Day is February 14.

Qixi originated from people's worship of natural phenomena. As early as ancient times, people knew something about astronomical phenomena, and corresponded the sky star area with the geographical area.

The ancients who pursued order not only planned the sky in an orderly way, but also corresponded the stars with the ground areas one by one. This correspondence is called "dividing stars" in astronomy and "dividing fields" underground.

Simply put, the ancients mapped each constellation in the sky to the physical geographical area on the ground.

There are written records about the division of astronomical starry sky regions corresponding to the above-ground regions of Cowherd and Weaver Girl, which can be found in the documents of Han Dynasty. Hanshu Geography: "Guangdong (Yue), Petunia (Cowherd) and Wu Nu (Weaver Girl) are also divided into Cangwu, Yulin, Hepu, Jiaotoe, Jiuzhen, Nanhai and Rinan."

Geography in Hanshu records the geographical divisions of Lingnan area corresponding to Cowherd and Weaver Girl.

According to historical documents, three or four thousand years ago, with people's understanding of astronomical phenomena and the emergence of textile technology, there was a record of Altair Vega.

In the Eastern Han Dynasty, there was a personalized description of the Cowherd and the Weaver Girl: "The Weaver Girl crossed the river on Tanabata, and the Queqiao Club." ?

In ancient times, Tanabata was closely related to the legend of Cowherd and Weaver Girl, and it was a comprehensive festival with women as the main body.

Because of the beautiful legend of Cowherd and Weaver Girl, Tanabata is a symbol of love. It is considered as the most romantic traditional festival in China, and is also called "Valentine's Day in China" by modern people.