Chongzheng Seventeenth Year

In the official history of the seventeenth year of Chongzhen in 1644, Li Zicheng invaded Beijing. Emperor Chongzhen hung himself from the southeast branch on the crooked neck tree in Meishan. Then Li Zicheng failed, and the Manchu Qing Dynasty entered Shenzhou Luchen. But in this world, the seventeenth year of Chongzheng in 1644, the Ming Dynasty was still stable. The alliance with Rome and Persia allowed the three countries to control most of the world. Powerful airships are still hovering over Europa, and the fleet of ships is looking for the Americas and the Southern Continent, and everything is prosperous. Until the appearance of the book that Ming Dynasty should have died in 1644.