How were african americans given citizenship rights after the civil war

What industry was exempt from the child-labor laws passed in the factory act of 1833?

Which type of work did slaves in the us south not engage in? gang work skilled work task work union work

The picture below shows president richard nixon and the first lady standing before the great wall of china in 1972. they are smiling - as are the chinese with them. when this picture was shown on american television, americans were aware that it was a historic moment. what are two reasons why this moment was important for both china and the united states?