Answer:
The 3 construction amendments.
Explanation:
13th amendment (1865)- abolished slavery in all confederate and union states, and in all countries under the united states.
14th amendment (1868)- gave citizenship to all people born or naturalized in the united states including slaves, and former inslaved prisoners at the time.
15th amendment (1870)- dissallowed the states from "dissinfranchising" voters due to ethnicity or race.
