I think the answer is palisades. That is what I learned from my class.
I hope you got a good grade on your assignment!! :D
The Han, Roman and Gupta empires all fell do to invasion. A strong, loyal army is necessary to protect the empire from invasion. All of these empires were first weakened by a succession weak governments. The trust and faith in the government was eroded over time. Internal strife by the people because of declining abilities of the government to govern weaken the state. The government should try to prevent internal rebellions by maintaining good governance over the people.
Answer:Indentured servants both black and white joined the frontier rebellion. Seeing them united in a cause alarmed the ruling class. Historians believe the rebellion hastened the hardening of racial lines associated with slavery, as a way for planters and the colony to control some of the poor. Hope this helped!
Explanation:
At least, I hope this is right. ¯\_(ツ)_/¯
Answer: the successful launch of the first artificial satellite
Explanation: so they can get better that the Soviet Union