^^Don't kid yourself Nelson, ignore the ridiculous lies propagated by the current Trek Administration!!! If you alter the past, it affects your current timeline. That's how time travel works in Star Trek, it's well established. Every event from the last 40+ years has been erased!!1
Good thing it's just fiction.

But wait--we can even make a trivia question out of it;
On how many occasions did we see a 'Trek crew's existing reality altered as a result of time-travel?