African American men were the group that the 15th Amendment ratified so they could have the right to vote.
The house and Senate approval by 3 quarters is required to amend the constitution.
Explanation:
Plessy v. Ferguson was important because it essentially established the constitutionality of racial segregation. As a controlling legal precedent, it prevented constitutional challenges to racial segregation for more than half a century until it was finally overturned by the U.S. Supreme Court in Brow
Slavery came about when the slave trade did. The negative impacts on slavery coming from the slave trade resulted in a demographic disaster due to the large amount of African males being removed in the continent. Slavery was also caused destruction of cultural diversity during the time.
