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How Old is the United States | How Old is America


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How Old is the United States – as of 2024

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How Old is the United States - as of 2024
Map of US showing the Date of Independence

Historians often label the United States as a young country because of its relatively brief history and its colonial ties to Britain before the Revolutionary War. But the question still persists – “How old is the United States”,how old is America”. Are both the questions different?

How Old is the USA?

When we talk about when the United States officially became its own country, it goes back to the Declaration of Independence. The Declaration of Independence was signed on July 4, 1776. So, if we start counting from the declaration, the United States of America will turn 248 years old on July 4, 2024.

Other significant dates that can be considered in determining the age of the United States include:

  1. May 14, 1607 – Jamestown Settlement

    The story of the United States began in Jamestown in 1607, which was the first place where English people settled in North America. When the colonists decided to stay there, they didn’t know it yet, but they were starting something important – like planting a new country. If we count the years from that time to 2024, the United States would be 417 years old.

  2. November 11, 1620 – Mayflower Compact

    In 1620, a group of people called Pilgrims wrote down some rules known as the Mayflower Compact. They did this because they wanted to have the freedom to practice their religion. These rules helped them work together and make decisions, kind of like the first set of instructions for how to live. If we count the years from that time to 2024, the United States would be 404 years old, starting from when these rules were first made.

  3. Articles of Confederation (Ratified in 1781)

    The adoption of the Articles of Confederation in 1781 was an early attempt at forming a union. Considering this date, the U.S. would be 243 years old in 2024.

  4. September 3, 1783 – Treaty of Paris

    The Treaty of Paris in 1783 formally ended the American Revolutionary War. The treaty made it clear that the United States was now its own country. If we start counting the years from this to 2024, the United States would be 241 years old.

  5. February 21, 1787 – The Northwest Ordinance

    The Northwest Ordinance of 1787 helped in planning out how new areas should be set up and governed. It also prohibited slavery in the Northwest Territory. If we start counting the years from when these rules were made to 2024, the United States would be 237 years old.

  6. March 4, 1789 – First U.S. Congress Convenes

    The inauguration of the first U.S. Congress on March 4, 1789, marked the official implementation of the newly adopted Constitution. By 2024, counting from this, the United States would be 235 years old.

  7. November 21, 1789 – Establishment of the Bill of Rights

    With the ratification of the Bill of Rights in 1789, everyone in the United States had certain freedoms and rights. If we start counting the years from this moment to 2024, the United States would be 235 years old.

  8. August 18, 1920 – 19th Amendment Ratified

    The ratification of the 19th Amendment in 1920, granted women the right to vote, which meant they could have a say in important decisions. Counting from this milestone, the United States would be 104 years old in 2024.

How Old is America

When we talk about “America,” we’re not just talking about the official start of the United States. We’re looking at a much bigger picture that goes way back in time. Humans migrated to the Americas across the Bering land bridge at least 12,000 years ago, meaning there has been human presence for millennia. Even before that, the continent has an even longer geological history dating back hundreds of millions of years. Therefore, there’s no single answer to how old “America” is.

What is the First State of the United States

Delaware was the first state to ratify the United States Constitution on December 7, 1787. This was an important decision because it showed other states that it was a good idea to agree to these rules. It helped bring all the states together under a shared system of government. The dates of other states to ratify the US Constitution are:


  1. Delaware – December 7, 1787
  2. Pennsylvania – December 12, 1787
  3. New Jersey – December 18, 1787
  4. Georgia – January 2, 1788
  5. Connecticut – January 9, 1788
  6. Massachusetts – February 6, 1788
  7. Maryland – April 28, 1788
  8. South Carolina – May 23, 1788
  9. New Hampshire – June 21, 1788
  10. Virginia – June 25, 1788
  11. New York – July 26, 1788
  12. North Carolina – November 21, 1789
  13. Rhode Island – May 29, 1790
  14. Vermont – March 4, 1791
  15. Kentucky – June 1, 1792
  16. Tennessee – June 1, 1796
  17. Ohio – March 1, 1803
  18. Louisiana – April 30, 1812
  19. Indiana – December 11, 1816
  20. Mississippi – December 10, 1817
  21. Illinois – December 3, 1818
  22. Alabama – December 14, 1819
  23. Maine – March 15, 1820
  24. Missouri – August 10, 1821
  25. Arkansas – June 15, 1836
  26. Michigan – January 26, 1837
  27. Florida – March 3, 1845
  28. Texas – December 29, 1845
  29. Iowa – December 28, 1846
  30. Wisconsin – May 29, 1848
  31. California – September 9, 1850
  32. Minnesota – May 11, 1858
  33. Oregon – February 14, 1859
  34. Kansas – January 29, 1861
  35. West Virginia – June 20, 1863
  36. Nevada – October 31, 1864
  37. Nebraska – March 1, 1867
  38. Colorado – August 1, 1876
  39. North Dakota – November 2, 1889
  40. South Dakota – November 2, 1889
  41. Montana – November 8, 1889
  42. Washington – November 11, 1889
  43. Idaho – July 3, 1890
  44. Wyoming – July 10, 1890
  45. Utah – January 4, 1896
  46. Oklahoma – November 16, 1907
  47. New Mexico – January 6, 1912
  48. Arizona – February 14, 1912
  49. Alaska – January 3, 1959
  50. Hawaii – August 21, 1959

If you are interested in exploring more about these states, check out our: US State Map. You can see all the 50 states and click on any state to see its own map.

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