The early 22nd century began the era of "time travel". At this time, the UN Security Council also created the "Time Bureau", a special surveillance service where employees are required to eliminate anachronisms caused by people visiting past events.

The early 22nd century began the era of "time travel". At this time, the UN Security Council also created the "Time Bureau", a special surveillance service where employees are required to eliminate anachronisms caused by people visiting past events.