In history. Something bad. What would you reverse if you could go back in time?
Think carefully, because reversing some bad things might have worse effects.
-Like stopping WW2 could have meant an even more devestating war in future years as countries got stronger.
-Stopping slavery could have hindered economic growth for 200+ years.
-Stopping 9/11, like no.1, could mean an even more devestating terror attack, because after 9/11 in USA anti-terror measures were stepped up loads.
So what is something that was just plain bad and shouldn't have happened, as it contributed nothing?