The lack of ability to raise taxes to operate the national government, and the requirement for a unaimous vote of the state's to pass legislation. The federal government had no way to force the states to obtain the funds it needed to operate. State only sent funds it needed to operate.
The Roman empire was well organized with good roads & active trade, so the new religion could spread easily. Constantine was a sun worshipper who feigned Christianity so he could take control and throw out it's one and only goal
No because everyone is biased based on who has power over them
I think you're answer is Athabaskan.
Hope this helps!