He 14th Amendment to the Constitution<span> was ratified on July 9, 1868, and granted citizenship to “all persons born or naturalized in the United States,” which included former slaves recently freed.</span>
McClellan discovered General Robert E. Lee's battle plan.
Obviously, infiltration and access to battle plans allow for the opponent to figure out what their opponent's plans are, thus giving McClellan the victory at Antietam.
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C
Because immigrants were not safe and were not treated good at that time
D bc that’s the right answer
Out of all those awnsers 6000 BCE is right.
