Why is Christopher Columbus such an important historical figure? a. He proved once and for all that the earth is round.
b. His discovery led to the colonization of the Americas.
c. He opened up a new trade route to Asia.
d. He was the greatest mapmaker of his time. ​

2. a land bridge connected asia and north america thousands of years ago.

4. crossing the land bridge would have been simple for the first migrants.

5. people might have crossed a land bridge while hunting animals.

the answer is they believed george iii would never give them their freedom.

the constitution gives congress the power to regulate commerce "among" the several states.

a system of cooperative federalism emerged, as the powers of the federal government expanded.