Cause of the incident:
This incident originated from a man named Mao. Mao Yu 1628 entered the imperial examination, was promoted from magistrate of a county to suggestion and transferred to Beijing, so he raised a mistress. Unexpectedly, one day, my wife suddenly came to Beijing from her hometown to catch the rape. The mistress was beaten to death and her husband was fined for one day and one night. He suddenly understood what made his wife come so soon, so he hated postal delivery, so he went to Emperor Chongzhen and abolished the postal delivery system. However, Chongzhen was afraid of violating the patriarchal clan system and did not approve it.
Postal delivery was originally intended to deliver messengers, release military information and transfer military supplies, but it existed in name only a hundred years later and became a free service for officials of all sizes to enjoy traveling abroad. This open secret is unknown only to Emperor Chongzhen. Mao did see the disadvantages. One of his relatives, Liu Mao, is an official of the Ministry of Punishment. Liu Mao admires Mao for meeting this angry youth and thinks what he said is also reasonable. Once again, he suggested to the emperor to cut his post, on the grounds that it would be the best of both worlds if his salary was used against Manchu.
Chongzhen, who is worried about finance, listened to his own heart and immediately cut the post. Liu Mao scrimped and saved for Chongzhen, but thousands of couriers joined the rebel army after losing their jobs, and a hero Li Zicheng appeared.