​What amendments?:

Question

officially abolished slavery in all areas of the United States
​
granted African American men the right to vote
​
granted African Americans in the United States citizenship

Answer 1

The amendments mentioned refer to the 13th Amendment (abolishing slavery), the 14th Amendment (granting citizenship), and the 15th Amendment (granting African American men the right to vote) to the United States Constitution.

Answer 2

So its 13th>15th>14th?

Answer 3

Yes, that is correct. The 13th Amendment was ratified first in 1865, followed by the 14th Amendment in 1868, and then the 15th Amendment in 1870.