In this episode a man named Mr. Corigan was sent back in time to the day that president Lincoln was assassinated. After many futile attempts to stop the event from happening, Lincoln was still killed by John Wilkes Booth. However, when he went back to the present subtle things had changed like his butler was now a part of his club, this is due to one of the cops he told going around telling everyone about the event.
This gives us a middle ground for what can happen when you time travel. You can not change the major events that do occur, however, you can alter miner events to either ruin or improve upon your life down the road.
This gives us a middle ground for what can happen when you time travel. You can not change the major events that do occur, however, you can alter miner events to either ruin or improve upon your life down the road.