Before Year 0 is know as the old world. The Old World is referred to ancient times and not much is left from that time. No one is sure when it started or stoppede and what was before, but historians state that calender year 0 started as the great catastrophy.

Year 0 (Greater Catastrophy happened and startede the time called the new world)

Year 100

Year 200

Year 300

Year 400

Year 500