Sixteen Most Significant Events in U.S. History between 1789 to 1975

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Sixteen Most Significant Events in U.S. History between 1789 to 1975

After a review of United States' history from 1789 to 1975, I have identified what I believe are the sixteen most significant events of that time period. The attached sheet identifies the events and places them in brackets by time period. The following discussion provides my reasoning for selecting each of the events and my opinion as to their relative importance in contrast to each other. Finally, I have concluded that of the sixteen events, the Civil War had the most significant impact on the history of the time period in which it occurred and remains the most significant event in American history.

The discussion begins with bracket I
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Jefferson, himself, carefully deliberated whether the Constitution granted him the right to acquire territory for the purpose of expandi the Union. He reflected on the possible need for an amendment to the Constitution to justify the action. Finally, under intense pressure, he allowed the purchase and set an important precedent. His action established the power of the president to expand the borders of the United States under the existing powers of the
Constitution.

Despite the economic and political implications of the Louisiana
Purchase, the Mexican-American War (1846-1848) had more significant historical implications on this time period. While disagreements between the two countries had been accumulating for two decades, the war was primarily the result of American feelings of "manifest destiny" to expand their borders. The treaty of Guadalupe Hidalgo, which ended the war, granted the United States the regions of California, Nevada and Utah, and parts of Arizona, New Mexico, Colorado, and Wyoming. However, the significant result of the war on United States' history would be the controversy over whether the territories acquired should be slave or free.
The country, at this time, was divided between proslave sentiment in the
South and antislave sentiment in the North. Various attempts at compromise to settle the controversy, such as "The Compromise of 1850" and the "Kansas
Nebraska Act" failed. Finally, when the issue
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