Answer:
Kansas-Nebraska Act
Explanation:
please be the brainlest ans
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.
Hope this helps!
The Chinese Exclusion Act of 1882 was the first significant law restricting immigration into the United States. Those on the West Coast were especially prone to attribute declining wages and economic ills on the despised Chinese workers.
Skull fossils found by the Leakeys advanced our understanding of human evolution. ... Origins of Humankind.......Mary Leakey's discovery of early human ...
Hope this helps.
