Wangji Incident

During the Wangji incident, a black hole was created in the national archives of the Jingdaoese Empire

The Wangji Incident is an incident in the history of Jingdao that caused the irreversible loss of many of the nation's archives. Experiments by Unit 666 briefly led to the formation of a black hole in the national archives, permanently destroying a lot of the nation's written history.