Answer:
The Nuclear Test Ban Treaty.
Explanation: This treaty was signed in 1963, as representatives of the United States, Soviet Union and Great Britain signed the Limited Nuclear Test Ban Treaty, which prohibited the testing of nuclear weapons in outer space, underwater or in the atmosphere.
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Answer:
The Civil War confirmed the single political entity of the United States, led to freedom for more than four million enslaved Americans, established a more powerful and centralized federal government, and laid the foundation for America's emergence as a world power in the 20th century.
Explanation:
<span>2,575 years passed between 3100 BC and 525 BC. Calculation of years in the BC era is found by taking the earlier date, or larger number, and subtracting the later or more recent date, the smaller number. 3100 - 525 = 2,575 years.</span>
