In what year was the United States Constitution ratified?

The United States Constitution was ratified in 1788, making that the correct answer. This year marked the culmination of a lengthy process that began with the Constitutional Convention in Philadelphia in 1787, where the document was drafted to replace the Articles of Confederation.

The ratification process involved each state holding conventions to debate and ultimately vote on the new Constitution. By June 1788, the necessary nine states had ratified it, allowing the Constitution to come into effect. It was formally adopted and became the framework for the federal government, establishing the executive, legislative, and judicial branches and outlining their powers.

While 1776 is significant as the year of the Declaration of Independence, it was not the year the Constitution was ratified. The year 1791 is relevant for the adoption of the Bill of Rights, the first ten amendments to the Constitution, which provided additional protections for individual liberties but came after the Constitution's initial ratification. The year 1865 was notable for the end of the Civil War and the passage of the Thirteenth Amendment, which abolished slavery, but it has no direct relation to the ratification of the Constitution. Therefore, 1788 is the date that signifies the establishment of the U.S. Constitution