<span>The Mississippi River is the largest and most important river in North America. This great river, often referred to as the “Mighty Mississippi,” originates as a small brook flowing out of Lake Itasca in Minnesota and, 2,340 miles later, empties into the Gulf of Mexico. It is truly one of the nation’s most important assets. Covering forty-one percent of the forty-eight contiguous United States, its watershed stretches across the heart of the nation. This vast river system, which includes several large tributaries, drains 1,260,000 square miles, making it the largest drainage basin in terms of area in North America and the third largest in the world</span>
Manifest destiny
Was a widely held belief in the United States that its settlers were destined to expand across North America. Championed by president Polk, the USA based the manifest destiny on three themes, such as special virtues,and the essential duty of the American people to redeem the west given by God.
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German declaration of Submarine Warfare
Zimmerman Telegrams
