In what year was the U.S. Constitution written?

The U.S. Constitution was written in 1787 during the Philadelphia Convention, where delegates from various states convened to address the weaknesses of the Articles of Confederation and establish a new framework of government. The drafting process took several months, and the final document was signed on September 17, 1787. This year is significant as it marks the creation of the foundational legal document that outlines the structure of the federal government and the rights of its citizens. The other years listed are associated with important events in U.S. history, such as the Declaration of Independence in 1776 and the ratification of the Bill of Rights in 1791, but they do not correspond to the year the Constitution itself was drafted.