What year was the Constitution ratified?

The Constitution of the United States was ratified in 1788. This year marks the completion of the formal process by which the original thirteen states adopted the Constitution, transitioning the nation from the Articles of Confederation to a robust federal government structure outlined in the new Constitution. The ratification process involved each state convention debating and ultimately voting on whether to accept the proposed document. By June 1788, enough states had ratified the Constitution for it to take effect, with New Hampshire being the ninth state to do so. This establishment of the Constitution is a pivotal moment in American history, as it laid the foundation for the federal government and the legal framework within which the United States operates today.