It promoted the (relatively) rapid diffusion of immigrants, language, and domesticated crops and animals. Those factors are examined in excellent detail in Jared Diamond's book, "Germ, Guns and Steel" which I highly recommend for anyone studying the development of world cultures. It's a long read, but well worth it.
Answer:
a: the supreme court ruled that american indian tribes were independent nations
Explanation:
cause i got it wrong and that was the right answer lol
Because it was strong dictator ship which is what italy and germany where being as they were allies.