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 United States of AmericaThe United States of America is a country in North America. There are 50 states in the United States of America. |
 U.S. ConstitutionThe Constitution of the United States is a document that outlines the basis of the federal (national) government of the USA. It was written in 1787 at the "Constitutional Convention," held in Philadelphia, Pennsylvania, in what we now call Independence Hall. The 55 men at the convention are called the "Founding Fathers" of the USA, and are also known as the "Framers of the Constitution." Some of the more famous of the framers are George Washington (the first President of the USA), James Madison (the fourth President of the USA), Benjamin Franklin, and Alexander Hamilton. The US Constitution was ratified (approved) by nine states (Delaware was the first state to ratify it), and went into effect on June 21, 1788 (it was later ratified by the remaining states). It replaced the earlier set of government rules, the Articles of Confederation, which were the law of the land from 1781 until 1788 (this document created a group of semi-independent states plus a weak national Congress, with neither an Executive nor a Judicial branch). |
 US MoneyUS money includes many coins (the cent 1¢, the nickel 5¢, the dime 10¢, the quarter 25¢, fifty cents 50¢, the dollar coin 100¢) and paper bills ($1.00, $2.00, $10.00, $20.00, $50.00, $100.00). One dollar is worth one hundred US cents. |
 US RiversThe USA has over 250,000 rivers, with a total of about 3,500,000 miles of rivers. The longest river in the USA is the Missouri River (it is a tributary of the Mississippi River and is 2,540 miles long), but the biggest in terms of water volume is the deeper Mississippi River. The longest undammed river in the contiguous USA is the Yellowstone River (it is 692 miles long). There are many other rivers in the US, including the Yukon River, the Rio Grande, the St. Lawrence River, the Arkansas River, the Colorado River, the Red River, the Brazos, River, the Columbia River, the Snake River, and others. |
| US State Areas The largest US state in terms of area is Alaska (656,425 square miles); the smallest is Rhode Island (1,545 square miles). |
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Utah