Let's see...
What if they dinosaurs never died out?
What if Hitler //died// in WWI?
What if President Kennedy (or alternatively, Licoln) was never assassinated?
What if the North lost the Civil War?
What if we lost the Revolutionary War?
What Aztecs/Incans/Mayans (or whatever) were never killed off?
These are the only (somewhat good) ideas I can think of right now (other than the obvious) "Nazis win WWII Scenario").
What if they dinosaurs never died out?
What if Hitler //died// in WWI?
What if President Kennedy (or alternatively, Licoln) was never assassinated?
What if the North lost the Civil War?
What if we lost the Revolutionary War?
What Aztecs/Incans/Mayans (or whatever) were never killed off?
These are the only (somewhat good) ideas I can think of right now (other than the obvious) "Nazis win WWII Scenario").