Spread in Xiuyan, Liaoning Province. According to legend, the wicked in the world have angered the mountain gods and the land, saying that there are fewer good people and more bad people in the world. The Jade Emperor ordered Lei and Shan Ershen to burn all the houses in the world and chop them to death. Taibai Venus didn't agree, and went to the earth to investigate, only to find that there were many good people. In order to prevent good people from being hurt, mugwort and stinky pu are hung in front of every house, and it is agreed that people who hang mugwort can prevent lightning strikes. Later, whether good or bad, mugwort leaves were hung on the fifth day of May every year.

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Reasons for inserting the custom of mugwort leaves:

Both Artemisia argyi and Acorus calamus contain aromatic oil, so they can be used as pesticides to kill pests and diseases. During the Dragon Boat Festival, the summer solstice approaches, the weather turns hot, the air is humid, mosquitoes breed and epidemics increase. Ancient people lacked scientific concepts and mistakenly thought that all diseases were caused by ghosts and evil spirits. Therefore, Artemisia argyi and Acorus calamus were tied into human shapes and hung in front of the door in the early days of the festival to drive away ghosts and evil and keep healthy. In fact, it is the fragrance of these two kinds of grass that really purifies the environment and repels the plague.

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