I think the second one might be the answer but please let me know if Im wrong
citizens living within any new territory would decide for themselves on the existence of slavery
Answer: The United States achieved its Manifest Destiny goal of owning territory from the Atlantic to the Pacific Ocean.
Explanation:
Territories gained in the Mexican cession made it possible for Americans to move west.
Answer: Emperor Constantine was an emperor who united Rome and ruled the Roman Empire in 306. He made christianity the major religion in Rome and stopped the persecution of Christians, he also built a new capital of Rome called Constantinople.
Explanation: