Partly due to the failure of Reconstruction to provide racial equality, African Americans would be free but oppressed , second-class citizens well into the 20th century. Reconstruction after the Civil War was a failure.
The end of the Cold War and the collapse of international communism created a new panorama in contemporary international relations and the need for a review of the US role in the world. The victory of the United States in the Cold War and the dismantling of the Soviet Union created the conditions for what was then defined as a New World Order.
The end of world communism and the collapse of the Soviet Union brought a new context to international politics, in which only one country would have the potential to become the organizing hegemonic power in the world. This context has brought an internal review of the possible positions that the United States should take and the nature of the possible conformations of a New World Order.
The independent variable is the one that is being changed. I hope this helped
Answer:
The Know-Nothing party was a nativist political movement of the 1850s that grew out of fear that major U.S. cities were being overwhelmed by Irish Catholic immigrants
