Why did early explorers not believe that the mounds were made by
native peoples?

information is crucial for making good decisions

a plantation economy is an economy based on agricultural mass production, usually of a few commodity crops grown on large farms called plantations. plantation economies rely on the export of cash crops as a source of income.

i hope this : )

polticians and sentates thought to annoucne the fialre of articles of confedartion by making a centralized nation as a hole

b. the right to wage war and make peace