The Event

"The Event", was a mysterious event or series of events that caused human civilisation to regress back into medieval technology and social relations. The details of how this came to be are obscure, with many possibilities and combinations of possiblities being proposed, such as a nuclear war or an extremely deadly global pandemic, among other possibilities. The date for when the Event occurred is unknown, but it is believed to have happened at some point in the 21st century.