Time travel mod I made

The mod is called Final Epoch, which adds:

• The Overworld's natural past and future (similar to earth's)
• extinct mobs (only a few anyway)
• the ability to time travel through the seven time periods (one of which is the current overworld)

the mod is in this link here: https://www.curseforge.com/minecraft/mc-mods/final-epoch

enjoy time travelling!