Spell to go back in time?

No one can travel back in time end of story. Time is simply a measurement of motion. They're two different terms you may hear, if you were to travel into the future you're speeding up motion , if you go into the past you're reversing motion.

I believed I answered a similar question before from someone. The fact of the matter is most people have very good memory, some can remember when they were a baby others have a hard time remembering what happened the night before. Being that we are able to remember those events in our lives we believe that there is a past, where of course there is a duplicate of ourselves. Of course there is a wormhole theory ((The time travel aspect of it.)) but it's pretty much irrelevant to this topic and not proven so no need for me to go into that.

Anyway if this spell or whatever was really significant to you, sorry but there is no way possible to change any events that have already taken place, it is what is. I hope this post helped a little. :D