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  1. The history of the lands that became the United States began with the arrival of the first people in the Americas around 15,000 BC. Numerous indigenous cultures formed, and many saw transformations in the 16th century away from more densely populated lifestyles and towards reorganized polities elsewhere.

  2. This is the oldest form of city government in the United States and, until the beginning of the 20th century, was used by nearly all American cities. Its structure is like that of the state and national governments, with an elected mayor as chief of the executive branch and an elected council that represents the various neighborhoods forming the legislative branch.

  3. The Constitution of the United States is the supreme law of the United States. [3] It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally including seven articles, the Constitution delineates the frame of the federal government.

  4. The 2018 North American cold wave takes place, with record low temperatures in the Midwestern and Eastern United States. Times Square in New York City has a temperature of 9 °F (−13 °C), with −4 °F (−20 °C) wind chill, [1] in addition to Omaha having a temperature of −15 °F (−26 °C) on December 30, 2017, lower than the previous ...

  5. Currently, the CIA World Factbook gives 9,826,675 km 2 (3,794,100 sq mi), [7] the United Nations Statistics Division gives 9,629,091 km 2 (3,717,813 sq mi), [8] and the Encyclopedia Britannica gives 9,522,055 km 2 (3,676,486 sq mi) (Great Lakes area included but not coastal waters). [9] These sources consider only the 50 states and the Federal ...

  6. A salute of one gun for each state in the United States, called a "salute to the union", is fired on Independence Day at noon by any capable military base. New York City has the largest fireworks display in the country sponsored by Macy's, with more than 22 tons of pyrotechnics exploded in 2009. It generally holds displays in the East River.

  7. This is a list of soccer clubs in the United States. For clarity, teams based outside the United States that play in USSF -recognized leagues are also listed below, with their home country noted. Five professional leagues of men's soccer teams [ citation needed ] are sanctioned by the Professional Division of the United States Soccer Federation (USSF or U.S. Soccer).