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Geography of The United States; Continent: North America: Coordinates: Area: Ranked 3rd/4th • Total: 9,826,675 km 2 (3,794,100 sq mi) • Land: 93.24% • Water: 6.76%: Coastline: 19,920 km (12,380 mi) Borders: Canada: 8,864 km (5,508 mi) Mexico: 3,327 km (2,067 mi) Highest point
The Constitution of the United States is the supreme law of the United States. It superseded the Articles of Confederation , the nation's first constitution , on March 4, 1789. Originally including seven articles, the Constitution delineates the national frame and constrains the powers of the federal government .
The United States of America, commonly known as the United States, or simply America, is a sovereign country mostly in North America. It is divided into 50 states. Forty-eight of these states and the District of Columbia border each other between the Pacific and Atlantic Oceans.
