What if Elephants had been fully domesticated? First of all, yes, this would have been hard to pull off. They're friggin huge. The males are too unpredictable and aren't useful outside of warfare. The females are more easily tamed, but will run away from the males, so they're useless in warfare. Still, cattle and horses were domesticated thousands of years ago (8000 and 6000, respectively), so with that much time, I could see us domesticating the elephant.
So, what effects could this have? Obviously, there'll be more elephants, and no worry about them going extinct. Lots of ivory available. They could be very useful for livestock, though I doubt anyone would be hooking them up to a plow. Still, they're good for pulling down trees, and there's alot of meat on an elephant. Also, areas with Elephants (Africa, India) might progress better.
So, what effects could this have? Obviously, there'll be more elephants, and no worry about them going extinct. Lots of ivory available. They could be very useful for livestock, though I doubt anyone would be hooking them up to a plow. Still, they're good for pulling down trees, and there's alot of meat on an elephant. Also, areas with Elephants (Africa, India) might progress better.