One of the 24 solar terms. Among the people, this is when every family would visit the ancestors' grave and stamp the earth; in the afternoon, they would prepare sacrificial offerings for the dead. After liberation, although the fields were planted and cremation was practiced, there were still some people who came to burn paper for the dead and visit the graves. On the Tomb-sweeping Day, primary and middle school students will visit the graves and the martyrs' tombs and this has become a habit.