Answer:
It was necessary because, it ratified in 1868 granted citizenship to all persons born or naturalized in the United States.
Many historians agree that westward expansion was indeed the primary source of contention between the North and South in the sense that it made the question os slavery unavoidable. Each new state had to be determined slave or free--leading to disagreements that led to the Civil War.
Why did the US airlifted supplies into west Germany for over a year because of the Berlin Wall. Truman ordered a massive airlift of supplies into West Berlin as an effort to avoid WWII. On June 26, 1948, the first planes took off from bases in England and western Germany and landed in West Berlin. For nearly a year, American planes landed around the clock.
I hope this helped.
It killed almost 50% of the population. They were devastated. Because there was no cure for it, they turned their faith towards God.
If I’m not mistaken, I think it’s h o m o erectus.