What economic doctrine was typically used during the post-civil war era?

The economic doctrine that was typically used during the post civil war era is the laissez-faire. The lasses-faire is a type of policy of which people has the right to take action or do what they want to do such as like the government and having to not interfere with what they want to do.

cherokee and arikara

immigrants from northern and western europe continued coming as they had for three centuries, but in decreasing numbers