The army arrived outside Chang 'an, just at the end of the year. In order to understand the situation in the city, Huang Chao went into the city under the guise of asking for information. The news that Huang Chao had entered the city was known by the officers and men, and the guards of the brigade poured into the streets to search for him. In an emergency, the owner of a shop let Huang Chao hide in the woodpile in the shop, thus avoiding the disaster. When he left, Huang Chao said to the shopkeeper, "Tell the people in the city to tie a red lantern with paper at the door on the fifteenth day of the first month." Huang Chao say that finish, too late to explain, then left in a hurry.
At the beginning of 88 1, Huang Chao army invaded Chang 'an. He ordered the army not to disturb anyone who hung a red lantern at the door. People in the city hung red lanterns at the door of every house, so no one was disturbed. Since then, in order to seek peace, people hang red lanterns at the door on the fifteenth day of the first month. Hanging red lanterns on the fifteenth day of the first month has become a symbol of good luck and safety.