Answer:
Yes.
Explanation:
Especially in history classes, even through college, all sources in which you draw information from must be cited, which includes, but is not limited too, the usage of MLA or other format that the teacher requires, date of publishment, author(s), titles in which the author(s) may hold, publishing house, as well as at least a paragraph that summarizes each individual source.
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If taking about Dred Scott, it might be said that he sued for his freedom but lost. He was a slave and his freedom was denied even though he lived in a free territory.
-Solomon Northrup was a back freedman who lived in New York. He was capture and sold into the New Orleans slave market.
-Roger B Taney repealed effectively the Missouri compromise.