The incas were credited with creating:

The answer is irrigation canals, rope suspension bridge, and aqueducts. Just took it and got a 100!

Explanation:

worcester v. georgia, legal case in which the u.s. supreme court on march 3, 1832, held (5–1) that the states did not have the right to impose regulations on native american land. andrew jackson refused to enforce the ruling, the decision form the basis for most subsequent indian law in the united states.