What major role did slavery play in, in the united states
a)the civil war
b)the increase in violence among americans
c)the language and culture of free states
d)relations between colonists and american indians

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Which best describes the impact of the crusades on european exploration?

Explain the reasons for u.s. neutrality during the 1920s and 1930s. how did ideas about neutrality change during the period from the end of world war i to the passage of the lend-lease act? be sure to include any events, terms, or people that may support your response.