<span>The answer is "13,14,15 amendments".</span>
<span>The
Thirteenth Amendment to the US Constitution formally canceled and keeps on
disallowing slavery up 'til the present time. </span>
The
Fourteenth Amendment to the US Constitution pronounced that all people born or
naturalized in the US are American nationals including African Americans.
The
Fifteenth Amendment to the US Constitution precludes every administration in
the US from rejecting a native the privilege to vote in view of that native's
race, shading, or past state of subjugation.
