what is the next era Americans enter due to the spark in western Frontier, using their own abundance of natural resources?​

In which case did the supreme court's decision allow schools to use forced bussing to ensure integration of its schools?

The original term of was descriptive of lower-class people who performed manual labor.

What is the term of the negotiated that recognized both british and american claims in the northwest? joint controljoint occupationjoint mandatejoint agreement