Answer:
1844-1877 As the nation expanded and its population grew, regional tensions, especially over slavery, led to a civil war — the course and aftermath of which transformed American society. Key Concept 5.1: The United States became more connected with the world as it pursued an expansionist foreign policy in the Western Hemisphere.
Explanation:
slavery started the Civil war. problems between the north and south
Rome and Greece both had a major impact on the architecture of Western civilization
For 391 years, going from 794 to 1185, the real power in Japan was in the hands of the Fujiwara family (A option), they achieved that by monopolizing regent positions. The seize of power by abdicated emperors at the 11th century followed by the rise of the Samurais led to Fujiwara's gradual decline.
The Khmer people, now native of Cambodia, were apart of a Kingdom named <span>Kambuja. Kambuja was located in the era of the Iron Age in India. </span>
