Because most were illiterate since they were denied a chance at gaining an education before since they were considered slaves and not a technically a US citizen that had full rights. After the Civil War through certain laws they were finally allowed to get an education.
Answer:
describing the circulation of the blood
Explanation:
Political changes are perhaps the most common way to enact change in a nation, because these changes almost always bring about social and economic changes.
Your answer would be B) Vasco de Gama's trip around Africa