Qingming Jiangnan eats youth league. Tomb-Sweeping Day was originally called Cold Food Festival, and its origin was to commemorate a celebrity who was killed by fire. Jin Wengong, the monarch in the Spring and Autumn Period, ordered Tomb-Sweeping Day not to make a fire, so people should prepare "cold food" before the festival and eat it on this day.

Now, green balls are made of wheat straw, wormwood juice, other green vegetable juice and glutinous rice flour, and then stuffed with bean paste.

Qingming origin:

In its historical development, Tomb-Sweeping Day has incorporated the custom of forbidding fire and cold food in the Cold Food Festival. It is said that the origin of Tomb-Sweeping Day originated from the "grave-sweeping" ceremony of ancient emperors and generals. Later, people followed suit, and it became a fixed custom of the Chinese nation to worship ancestors and sweep graves on this day.

Through historical development, Tomb-Sweeping Day in the Tang and Song Dynasties integrated the customs of Cold Food Festival and Shangjie Festival, and integrated various folk customs, which had extremely rich cultural connotations.