Governments of all the countries, including the United States of America, have five purposes. They are defense, national identity, representation, social welfare, and infrastructure. A government, basically, has three branches - the Executive, the Legislative, and the Judicial.
The historians cited in the article all agree with one another about the cause of the Civil War. Despite coming from different backgrounds and cultures, the historians agree that slavery was the root cause of the Civil War. The fact that all these historians generally agree with one another makes their shared viewpoints more reliable and valid, especially because the historians have different backgrounds and all work for the well-respected institutions of Howard University, Clemson University, and the University of Colorado.
Enumerated powers are specifically listed in the constitution. Implied powers are not stated specifically but are assumed by the exercise of the enumerated powers.
