The Qingming Festival, also known as Tomb Sweeping Day, is a traditional Chinese holiday that falls on the 15th day after the Spring Equinox. It is a time for people to pay tribute to their ancestors by visiting their graves, cleaning them, and offering food and other offerings.

The origins of the Qingming Festival can be traced back to the Tang Dynasty (618-907 AD). During this time, it was customary for people to go out into the countryside to enjoy the spring weather and view the beautiful scenery. However, as time went on, this holiday became more focused on paying respects to one's ancestors.

Today, the Qingming Festival is an important holiday in China and other parts of East Asia. It is a time for families to come together and honor their ancestors, as well as to reflect on the past and look towards the future. While the holiday has changed over time, its meaning and importance have remained the same.