Answer:
The 13th, 14th and 15th Amendments.
Step-by-step explanation:
Adopted in the years between 1865 and 1870 the 13th, 14th and the 15th Amendments are referred to as the Reconstruction Amendments in the Constitution of the United States. These three amendments were important to implement the Reconstruction following the civil war. In short, these amendments had provisions that provided freedom to the former slaves and limit discrimination in some civil rights to former slaves and free residents of the U.S.