The core is mostly made up of iron
Definition
and Summary: The Black Codes were a series of statutes and laws enacted
in 1865 and 1866 by the legislatures of the Southern states of
Mississippi, Alabama, Georgia, Louisiana, Virginia, Florida, Tennessee,
and North Carolina following the end of the Civil War at the beginning
of the Reconstruction Era. The Black Codes were created to restrict the
freedom of ex-slaves in the South.
<span><span>Black Codes
</span>Andrew Johnson<span>
was the 17th American President who served in office from April 15,
1865 to March 4, 18 69. One of the important events during his
presidency was the Black Codes during the Reconstruction Era following
the Civil War.</span></span>
The New Deal reform that helped labor unions win the right to represent workers was the "(3) passage of the National Labor Relations <span>(Wagner) Act" but there were other things as well. </span>
I believe it is true, I think what your asking is related to the United Nations