Because they needed social struture
Answer:
A
Explanation:
Although viking raids were pretty big back then, they do not have much of an impact on European societies today
Focusing on yourself would be more important than trying to change other people, as long as you’re changing for the better then you could be part of changing the world...
The introduction of the cotton gin by Eli Whitney had a great effect on the plantations, as well as slavery. Before the cotton gin was invented, the production of cotton was a… painstaking business. To remove the cotton fiber from the seeds took a great amount of time.