Answer:
The various cultures collectively termed "Mound Builders" were inhabitants of North America who, during a 5,000-year period, constructed various styles of earthen mounds for religious, ceremonial, burial, and elite residential purposes.
The american navy played a role in two major operations of the mexican war in 1845 to 1848 which is during the battle of Veracruz, it elated the invasion force that captured Veracruz by landing 12,000 troops and their equipment in one day and top finally to the internment of mexico city and the end of the war. Secondly, the pacific squadron ship eased the capture of California.
The general consensus amongst historians is that the balance between Federal and State powers was done to appease those who were afraid that too strong of a federal government would be no different than the monarchy that the colonists were overthrowing.
He discovered the Mississippi River.
An excise tax is are taxes that are paid when purchases on a specific good are made. An example of this could be the excise tax that's imposed when you purchase gasoline.