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  1. 2 days ago · The United States is a leader in the development of artificial intelligence technology and has maintained a space program since the late 1950s, with plans for long-term habitation of the Moon. [303] [304] In 2022, the United States was the country with the second-highest number of published scientific papers. [305]

  2. 3 days ago · The United States is a country in North America that is a federal republic of 50 states. Besides the 48 conterminous states that occupy the middle latitudes of the continent, the United States includes the state of Alaska, at the northwestern extreme of North America, and the island state of Hawaii, in the mid-Pacific Ocean.

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  3. 3 days ago · 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 [3] It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789.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 national frame and constrains the powers of the federal government.

    • September 17, 1787
    • June 21, 1788
  4. 2 days ago · The United States is a constitutional federal republic, in which the president (the head of state and head of government ), Congress, and judiciary share powers reserved to the national government, and the federal government shares sovereignty with the state governments. The federal government is divided into three branches, as per the specific ...

    • March 4, 1789; 234 years ago
    • White House
  5. 2 days ago · The United States had an official estimated resident population of 334,914,895 on July 1, 2023, according to the U.S. Census Bureau. This figure includes the 50 states and the District of Columbia but excludes the population of five unincorporated U.S. territories (Puerto Rico, Guam, the U.S. Virgin Islands, American Samoa, and the Northern Mariana Islands) as well as several minor island ...

    • 86.16/sq mi (33.27/km²)
    • 0.4% (2022)
    • 1.665 children born/woman (2022)
    • 340,458,130 (est. 2023)
  6. 4 days ago · Kamala Harris (born October 20, 1964, Oakland, California, U.S.) 49th vice president of the United States (2021– ) in the Democratic administration of Pres. Joe Biden. She was the first woman and the first African American to hold the post. She had previously served in the U.S. Senate (2017–21) and as attorney general of California (2011–17).

  7. 1 day ago · The federal debt at the end of the 2018/19 fiscal year (ended September 30, 2019) was $22.7 trillion (~$27.1 trillion in 2023). The portion that is held by the public was $16.8 trillion. Neither figure includes approximately $2.5 trillion owed to the government. [83] Interest on the debt was $404 billion.

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